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Bulletin 1794 IFM and Cable Selection Table
Pre-Wired Cable and IFMs for Bulletin 1794 Digital 8-Point and 16-Point I/O Modules ‡
| Description of 20-Pin IFM and Flex Distributed I/O | Cat. No. for Wiring System Module with Fixed Terminal Block | Cat. No. for Wiring System Module with Removable Terminal Block Socket Assembly (order plugs separately) | Cat. No. for Compatible Screw Style (N) and Push-in Style (P) RTB Plugs ¬ | Flex Digital I/0 Module — Uses D-Shell Base 179-TB37DS | ||||||||||
| IB16 | IB8 | IB10XOB6 | IV16 | OB16 | OB16P | OB8 | OB8EP | OV16 | OV16P | OW8 | ||||
| Feed-through | ||||||||||||||
| Standard 264V AC/DC Max. | 1492-IFM20F | 1492-RIFM20F | 1492-RTB20µ | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 |
| Narrow standard 132V AC/DC Max. | 1492-IFM20FN | 1492-RIFM20FN | 1492-RTB10µ | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 |
| Extra terminals (2 per I/O) 264V AC/DC Max. | 1492-IFM20F-2 | 1492-RIFM20F-2 | 1492-RTB20µ | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 | A94 |
| 3-wire sensor type input devices 132V AC/DC Max. | 1492-IFM20F-3 | — | — | A94 | A94 | — | A94 | — | — | — | — | — | — | — |
| Description of 20-Pin IFM and Flex Distributed I/O | Cat. No. for Wiring System Module with Fixed Terminal Block | Cat. No. for Wiring System Module with Removable Terminal Block Socket Assembly (order plugs separately) | Cat. No. for Compatible Screw Style (N) and Push-in Style (P) RTB Plugs ¬ | Flex Digital I/0 Module — Uses D-Shell Base 179-TB37DS | ||||||||||
| IB16 | IB8 | IB10XOB6 | IV16 | OB16 | OB16P | OB8 | OB8EP | OV16 | OV16P | OW8 | ||||
| LED Indicating | ||||||||||||||
| Standard with 24V AC/DC LEDs | 1492-IFM20D24 | — | — | — | — | — | — | A94 | A94 | A94 | A94 | A94 | A94 | — |
| Narrow standard with 24V AC/DC LEDs | 1492-IFM20D24N | — | — | A94 | A94 | — | — | A94 | A94 | A94 | A94 | — | — | — |
| Standard with 120V AC/DC LEDs | 1492-IFM20D120 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Narrow standard with 120V AC LEDs | 1492-IFM20D120N | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 24V AC/DC LEDs and extra terminals for outputs | 1492-IFM20D24-2 | — | — | — | — | — | — | A94 | A94 | A94 | A94 | A94 | A94 | — |
| 24V AC/DC LEDs and extra terminals for inputs | 1492-IFM20D24A-2 | — | — | A94 | A94 | — | A94 | — | — | — | — | — | — | — |
| 120V AC LEDs and extra terminals for outputs | 1492-IFM20D120-2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 120V AC LEDs and extra terminals for inputs | 1492-IFM20D120A-2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 3-wire sensor with 24V AC/DC LEDs | 1492-IFM20D24-3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 8 Individually isolated with 24/48V AC/DC LEDs and 4 terminals/output | 1492-IFM20DS24-4 | — | — | — | — | — | — | — | — | — | — | — | — | A94 |
| 8 Individually isolated with 120V AC LEDs and 4 terminals/output | 1492-IFM20DS120-4 | — | — | — | — | — | — | — | — | — | — | — | — | A94 |
| 240V AC LEDs and extra terminals for outputs | 1492-IFM20D240-2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 240V AC LEDs and extra terminals for inputs | 1492-IFM20D240A-2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Description of 20-Pin IFM and Flex Distributed I/O | Cat. No. for Wiring System Module with Fixed Terminal Block | Cat. No. for Wiring System Module with Removable Terminal Block Socket Assembly (order plugs separately) | Cat. No. for Compatible Screw Style (N) and Push-in Style (P) RTB Plugs ¬ | Flex Digital I/0 Module — Uses D-Shell Base 179-TB37DS | ||||||||||
| IB16 | IB8 | IB10XOB6 | IV16 | OB16 | OB16P | OB8 | OB8EP | OV16 | OV16P | OW8 | ||||
| Fusible | ||||||||||||||
| 120V AC/DC with extra terminals for outputs | 1492-IFM20F-F-2 | 1492-RIFM20F-F-2 | 1492-RTB20µ | — | — | — | — | A94 | A94 | A94 | A94 | A94 | A94 | — |
| Extra terminals with 24V AC/DC blown fuse LED indicators | 1492-IFM20F-F24-2 | 1492-RIFM20F-F24-2 | 1492-RTB20µ | — | — | — | — | A94 | A94 | A94 | A94 | A94 | A94 | — |
| Extra terminals with 120V AC/DC blown fuse LED indicators | 1492-IFM20F-F120-2 | 1492-RIFM20F-F120-2 | 1492-RTB20µ | — | — | — | — | — | — | — | — | — | — | — |
| Extra terminals with 240V AC/DC blown fuse LED indicators | 1492-IFM20F-F240-2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Extra terminals with 24V AC/DC blown fuse LED indicators for inputs | 1492-IFM20F-F24A-2 | 1492-RIFM20F-F24A-2 | 1492-RTB20µ | A94 | A94 | — | — | — | — | — | — | — | — | — |
| Extra terminals with 120V AC/DC blown fuse LED indicators for inputs | 1492-IFM20F-F120A-2 | 1492-RIFM20F-F120A-2 | 1492-RTB20µ | — | — | — | — | — | — | — | — | — | — | — |
| 8 Individually isolated 120V AC/DC with extra terminals for outputs | 1492-IFM20F-FS-2 | — | — | — | — | — | — | — | — | — | — | — | — | A94 |
| 8 Individually isolated with extra terminals and 24V AC/DC blown fuse LED indicators | 1492-IFM20F-FS24-2 | — | — | — | — | — | — | — | — | — | — | — | — | A94 |
| Two 4-point isolated groups with four terminals/input and 24V AC/DC blown fuse LED indicators | 1492-IFM20F-FS24A-4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 8 Individually isolated with extra terminals/output and 120V AC/DC blown fuse LED indicators | 1492-IFM20F-FS120-2 | — | — | — | — | — | — | — | — | — | — | — | — | A94 |
| 8 Individually isolated with 4 terminals/output and 120V AC/DC blown fuse LED indicators | 1492-IFM20F-FS120-4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Two 4-point isolated groups with four terminals/input and 120V AC/DC blown fuse indicators | 1492-IFM20F-FS120A-4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 8 Individually isolated with 4 terminals/output and 240V AC/DC blown fuse LED indicators | 1492-IFM20F-FS240-4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Description of 20-Pin IFM and Flex Distributed I/O | Cat. No. for Wiring System Module with Fixed Terminal Block | Cat. No. for Wiring System Module with Removable Terminal Block Socket Assembly (order plugs separately) | Cat. No. for Compatible Screw Style (N) and Push-in Style (P) RTB Plugs ¬ | Flex Digital I/0 Module — Uses D-Shell Base 179-TB37DS | ||||||||||
| IB16 | IB8 | IB10XOB6 | IV16 | OB16 | OB16P | OB8 | OB8EP | OV16 | OV16P | OW8 | ||||
| Relay Master (LED Indicating) § Ø | ||||||||||||||
| 20-pin master with eight 24V DC relays | 1492-XIM2024-8R | — | — | — | — | — | A94 | A94 | A94 | — | — | — | — | — |
| 20-pin master with eight 120V AC relays | 1492-XIM20120-8R | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20-pin master with sixteen 120V AC relays | 1492-XIM20120-16R | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20-pin master with sixteen 120V AC relays with fusing | 1492-XIM20120-16RF | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20-pin master with sixteen 24V DC relays | 1492-XIM2024-16R | — | — | — | — | — | A94 | A94 | — | — | — | — | — | — |
| 20-pin master with sixteen 24V DC relays with fusing | 1492-XIM2024-16RF | — | — | — | — | — | A94 | A94 | — | — | — | — | — | — |
| Description of 20-Pin IFM and Flex Distributed I/O | Cat. No. for Wiring System Module with Fixed Terminal Block | Cat. No. for Wiring System Module with Removable Terminal Block Socket Assembly (order plugs separately) | Cat. No. for Compatible Screw Style (N) and Push-in Style (P) RTB Plugs ¬ | Flex Digital I/0 Module — Uses D-Shell Base 179-TB37DS | ||||||||||
| IB16 | IB8 | IB10XOB6 | IV16 | OB16 | OB16P | OB8 | OB8EP | OV16 | OV16P | OW8 | ||||
| Relay Expander (LED Indicating) § Ø | ||||||||||||||
| Expander with eight 24V DC relays | 1492-XIM24-8R | 1492-RXIM24-8R | 1492-RTB12µ | — | — | — | T | T | — | — | — | — | — | — |
| Expander with eight 120V AC relays | 1492-XIM120-8R | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Description of 20-Pin IFM and Flex Distributed I/O | Cat. No. for Wiring System Module with Fixed Terminal Block | Cat. No. for Wiring System Module with Removable Terminal Block Socket Assembly (order plugs separately) | Cat. No. for Compatible Screw Style (N) and Push-in Style (P) RTB Plugs ¬ | Flex Digital I/0 Module — Uses D-Shell Base 179-TB37DS | ||||||||||
| IB16 | IB8 | IB10XOB6 | IV16 | OB16 | OB16P | OB8 | OB8EP | OV16 | OV16P | OW8 | ||||
| Fusible Expander | ||||||||||||||
| 8-channel expander with 24V DC blown fuse indicators | 1492-XIMF-F24-2 | — | — | — | — | — | T | T | — | — | — | — | — | — |
| 8-channel expander with 120V AC blown fuse indicators | 1492-XIMF-F120-2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Feed-through Expander | ||||||||||||||
| Description of 20-Pin IFM and Flex Distributed I/O | Cat. No. for Wiring System Module with Fixed Terminal Block | Cat. No. for Wiring System Module with Removable Terminal Block Socket Assembly (order plugs separately) | Cat. No. for Compatible Screw Style (N) and Push-in Style (P) RTB Plugs ¬ | Flex Digital I/0 Module — Uses D-Shell Base 179-TB37DS | ||||||||||
| IB16 | IB8 | IB10XOB6 | IV16 | OB16 | OB16P | OB8 | OB8EP | OV16 | OV16P | OW8 | ||||
| Expander with eight feed-through channels 132V AC/DC max | 1492-XIMF-2 | — | — | — | — | — | T | T | — | — | — | — | — | — |
| ¬ Order plugs separately (two plugs per catalog number). Plugs are available in screw style and push in style terminal types. To order, replace the µ in the catalog number with the code for the desired terminal style. The code for screw style is N and the code for push in style is P. | ||||||||||||||
| T Can have up to one relay expansion module depending upon relay master used (total 16 points or less). Extender cable is provided. | ||||||||||||||
| ‡ Cables are available in standard lengths of 0.5 m 1.0 m, 2.5 m, and 5.0 m. To order, insert the code for the desired cable length into the catalog number 005 = 0.5 m (010 = 1.0 m, 025 = 2.5 m, and 050 = 5.0 m), and insert the letter in the box. Example: Catalog Number 1492 CAB010A94 is for a 1.0 m cable, and the suffix A94 | ||||||||||||||
| § This IFM is not recommended for use with PLC I/O modules that have an off-state leakage current exceeding 0.5 mA. Use a 1492-IFM20D120N or 1492-IFM20D120A-2 for inputs. Use 1492-IFM20D120-2 for outputs. | ||||||||||||||
| § The voltage rating is relay control/coil voltage. Refer to Specifications. | ||||||||||||||
| Ø The LED indicates the PLC output status. | ||||||||||||||
Bulletin 1794 IFM and Cable Selection (continued)
Pre-Wired Cable and IFMs for Bulletin 1794 Digital 16-Point Isolated and 32-Point I/O Modules ‡
| Description of 40-Pin IFM | Cat. No. for Wiring System Module with Fixed Terminal Block | Cat. No. for Wiring System Module with Removable Terminal Block Socket Assembly (order plugs separately) | Cat. No. for Compatible Screw Style (N) and Push-in Style (P) RTB Plugs ª | Flex Digital I/O Module — Uses D-Shell Base 1794-TB62DS | |||
| IB16D | IB16XOB16P | IB32 | OB32P | ||||
| Feed-through | |||||||
| Standard 132V AC/DC Max. | 1492-IFM40F | 1492-RIFM40F | 1492-RTB20µ | B94 | B94 | B94 | B94 |
| Extra terminals (2 per I/O) 132V AC/DC Max. | 1492-IFM40F-2 | 1492-RIFM40F-2 | 1492-RTB20µ | B94 | B94 | B94 | B94 |
| 3-wire sensor type input devices 60V AC/DC Max. | 1492-IFM40F-3 | — | — | — | — | — | — |
| LED Indicating | |||||||
| Standard with 24V AC/DC LEDs | 1492-IFM40D24 | 1492-RIFM40D24 | 1492-RTB20µ | — | — | B94 | B94 |
| 24V AC/DC LEDs and extra terminals for outputs | 1492-IFM40D24-2 | — | — | — | — | — | B94 |
| 24V AC/DC LEDs and extra terminals for inputs | 1492-IFM40D24A-2 | 1492-RIFM40D24A-2 | 1492-RTB20µ | — | — | — | — |
| 120V AC LEDs and extra terminals for outputs | 1492-IFM40D120-2 | — | — | — | — | — | — |
| 120V AC LEDs and extra terminals for inputs | 1492-IFM40D120A-2 | — | — | — | — | — | — |
| 3-wire sensor with 24V AC/DC LEDs | 1492-IFM40D24-3 | — | — | — | — | — | — |
| 16 individually isolated with 24/48V AC/DC LEDs and four terminals/output | 1492-IFM40DS24-4 | — | — | — | — | — | — |
| 16 individually isolated with 24V AC/DC LEDs and four terminals/input | 1492-IFM40DS24A-4 | — | — | — | — | — | — |
| 16 individually isolated with 120V AC LEDs and four terminals/output | 1492-IFM40DS120-4 | — | — | — | — | — | — |
| 16 individually isolated with 120V AC LEDs and four terminals/input | 1492-IFM40DS120A-4 | — | — | — | — | — | — |
| 16 individually isolated with 240V AC LEDs and four terminals/input | 1492-IFM40DS240A-4 | — | — | — | — | — | — |
| Fusible | |||||||
| 120V AC/DC with extra terminals for 32-point outputs | 1492-IFM40F-F-2 | — | — | — | — | — | B94 |
| Extra terminals with 24V AC/DC blown fuse indicators for 32-point outputs | 1492-IFM40F-F24-2 | 1492-RIFM40F-F24-2 | 1492-RTB20µ | — | — | — | B94 |
| Extra terminals with 120V AC/DC blown fuse indicators for outputs | 1492-IFM40F-F120-2 | — | — | — | — | — | — |
| 16 individually isolated with extra terminals for 120V AC/DC outputs | 1492-IFM40F-FS-2 | — | — | — | — | — | — |
| 16 individually isolated with extra terminals and 24V AC/DC blown fuse indicators | 1492-IFM40F-FS24-2 | — | — | — | — | — | — |
| 16 individually isolated with 24V AC/DC blown fuse indicators and four terminals/output | 1492-IFM40F-FS24-4 | — | — | — | — | — | — |
| 16 individually isolated 240V AC/DC with four terminals/output | 1492-IFM40F-FS-4 | — | — | — | — | — | — |
| 16 individually isolated with extra terminals and 120V AC/DC blown fuse LED indicators | 1492-IFM40F-FS120-2 | 1492-RIFM40F-FS120-2 | 1492-RTB20µ | — | — | — | — |
| 16 individually isolated with 120V AC/DC blown fuse indicators and four terminals/output | 1492-IFM40F-FS120-4 | 1492-RIFM40F-FS120-4 | 1492-RTB17µ | — | — | — | — |
| 16 individually isolated with 240V AC/DC blown fuse indicators and four terminals/output | 1492-IFM40F-FS240-4 | — | — | — | — | — | — |
| 16 individually isolated with 24V AC/DC blown fuse indicators and four terminals/input | 1492-IFM40F-FS24A-4 | — | — | — | — | — | — |
| 16 individually isolated with 120V AC/DC with four terminals/input | 1492-IFM40F-FSA-4 | — | — | — | — | — | — |
| 16 individually isolated with 120V AC/DC blown fuse indicators and four terminals/input | 1492-IFM40F-FS120A-4 | 1492-RIFM40F-FS120A-4 | 1492-RTB17µ | — | — | — | — |
| 16 individually isolated with 240V AC/DC blown fuse indicators and four terminals/input | 1492-IFM40F-FS240A-4 | — | — | — | — | — | — |
| Relay Master (LED Indicating) Ø z | |||||||
| 40-pin master with eight 24V DC relays | 1492-XIM4024-8R | — | — | — | — | — | B94 |
| 40-pin master with sixteen 24V DC relays | 1492-XIM4024-16R | 1492-RXIM4024-16R | 1492-RTB14µ | — | — | — | B94 |
| 40-pin master with sixteen 24V DC relays with fusing | 1492-XIM4024-16RF | — | — | — | — | — | B94 |
| Relay Expander (LED Indicating) Ø z | |||||||
| Expander with eight 24V DC relays | 1492-XIM24-8R | 1492-RXIM24-8R | 1492-RTB12µ | — | — | — | ¬ |
| Expander with eight 120V AC relays | 1492-XIM120-8R | — | — | — | — | — | — |
| Fusible Expander | |||||||
| 8-channel expander with 24V DC blown fuse indicators | 1492-XIMF-F24-2 | — | — | — | — | — | ¬ |
| 8-channel expander with 120V AC blown fuse indicators | 1492-XIMF-F120-2 | — | — | — | — | — | — |
| Expander with sixteen 24V DC relays with fusing | 1492-XIM24-16RF | — | — | — | — | — | T |
| Feed-through Expander | |||||||
| Expander with eight feed-through channels 132V AC/DC max | 1492-XIMF-2 | — | — | — | — | — | ¬ |
| ¬ Two or three expanders are connected to a master to provide a total of 32 outputs max (depends on PLX module). And extender cable is included with each expander to connect it to the master. | |||||||
| T One 1492-XIM24-16RF is to be used with one 1492-XIM4024-16R and 1492-XIM4024-16RF master (32 pt. only). | |||||||
| ‡ Cables are available in standard length of 0.5, 1.0, and 5.0 m. To order, insert the code for the desired cable length into the catalog number 005 = 0.5 m (010 = 1.0 m, 025 = 2.5 m, and 050 = 5.0 m), and insert the letter in the box. Example: Catalog Number 1402-CABLE050A is for a 5.0 m cable, and the letter A. | |||||||
| Ø The voltage rating is relay control/coil voltage. Refer to the Specifications tab. | |||||||
| z The LED indicates the PLC output status. | |||||||
| ª Order plugs separately (two plugs per catalog number). Plugs are available in screw style and push in style terminal types. To order, replace the µ in the catalog number with the code for the desired terminal style. The code for screw style is N and the code for push in style is P. | |||||||
Bulletin 1794 Cables
These pre-wired cables have a 37- or 62-pin D-shell connector on one end to mate with the Flex base (Cat. No. 1492-TB37DS or -TB62DS) and a 20- or 40–pin AMP connector at the other end to mate with the IFM/XIM module. You must first select the IFM/XIM from one of the preceding selection tables.
Pre-Wired Cables for Bulletin 1794 Flex Digital I/O Modules using Flex Base 1794-TB37DS or - TB62DS
| Cable Cat. No. | Standard Cable Lengths | Build-to-Order Available | No. of Conductors | Uses Flex Base | Mating 1794 I/O Modules Cat. No. |
| 1492-CAB¬ A94 | 0.5, 1.0, 2.5, 5.0 m | Yes | 20 | 1794-TB37DS | 1794-IB16, -IB8, -IV16, -OB16, -OB16P, -OB8, -OB8EP, -OV16, OV16P, -OW8, -IB10XOB8 |
| 1492-CAB¬ B94 | 0.5, 1.0, 2.5, 5.0 m | Yes | 40 | 1794-TB62DS | 1794-IB16D, -IB32, OB32P, -IB16XOB16P |
| ¬ Cables are available in standard lengths of 0.5 m, 1.0 m, 2.5 m, and 5.0 m. To order, insert the code for the desired cable length into the cat. no. (005 = 0.5 m, 010 = 1.0 m, 025 = 2.5 m, and 050 = 5.0 m). Example: Cat. No. 1492-CAB050A94 is for a 0.5 m cable that could be used to connect a Cat. No. 1492-IFM40F IFM to a Cat. No. 1794-IB16 I/O module. | |||||
The I/O module-ready cables have a 37- or 62-pin D-shell connector on one end to mate with the Cat. No. 1794-TB37DS or 1794-TB62DS Flex I/O base and 20 or 40 individually colored #22 AWG conductors (flying leads) at the other end. These cables provide the convenience of pre-wired connectors at the I/O module end, while allowing the flexibility to field-wire to standard
terminal blocks of your choice.
I/O Module-Ready Cables for 1794 Digital I/O Modules
| Description | Standard Cable Lengths | Build-to-Order Available | No. of Conductors | Mating I/O Module Cat. No. |
| 1492-CAB¬ G94 | 1.0, 2.5, 5.0 m | Yes | 20 | 1794-IB16, -IB8, -IV16, -OB16, -OB16P, -OB8, -OB8EP, -OV16, OV16P, -OW8, -IB10XOB8 |
| 1492-CAB¬ H94 | 1.0, 2.5, 5.0 m | Yes | 40 | 1794-IB16D, -IB32, OB32P, -IB16XOB16P |
| ¬ Cables are available in standard lengths of 1.0, 2.5, and 5.0 m. To order, insert the code for the desired cable length into the cat. no. (010 = 1.0 m, 025 = 2.5 m, and 050 = 5.0 m). Example: Cat. No. 1492-CAB050G94 is for a 5.0 m cable. | ||||