Catalogs > Automation Systems Catalog > I/O > On-Machine Distributed I/O > 1738 ArmorPoint I/O
1738 ArmorPoint I/O
| Introduction |  |
Product Design | |
Environmentals and Certifications | |
Communication Adapter Modules | |
Digital DC I/O Modules | |
| Digital AC I/O Modules | |
Analog I/O Modules | |
Specialty I/O Modules | |
Power Supplies | |
Accessories | |
- Counter Modules
- SSI Modules
- Serial Interface Modules (RS–232, RS–485, RS–422)
ArmorPoint Counter Modules
The input voltage range is 5V DC (1738–IJ) or 15…24V DC (1738–VHSC24). The module returns the count or frequency in the form of a 24-bit binary number (0…16,777,215) expressed in a 32-bit word. Each counter has a user-selectable preset and rollover value associated with it.
The operation of the counter and encoder modes is nearly identical. The difference between the two modes is in the type of feedback (one-phase versus two-phase) for the count direction (up or down). In encoder mode, a transition is expected on B for counting to proceed in a direction, whereas, in counter mode, the B input may be left at a static level. All operating modes are selected by writing appropriate configuration data to the module.
| Cat. No. | Number of Counters | Voltage, On-State Input, Nom. | Field Power Bus | Number of Compare Windows | Output Groups | Input Frequency, Max. | Output Delay Time, Off to On | Current, On-State Input, Min. | PointBus Current (mA) | Termination Type |
| 1738-IJM23 | 1 | 5V DC | Voltage dependent on field power source¬ | — | — | 1.0 MHz counter and encoder X1 configurations (no filter) 500 kHz encoder X2 configuration (no filter) 250 kHz encoder X4 configuration (no filter) |
— | ³5 mA | 160 | M23 |
| 1738-VHSC24M23 | 1 | 24V DC | 4 | 1 group of 2 | 25 ms (load dependent)T | 110 | M23 | |||
| ¬ Field power source via the field power connection on the network adapter, 1738–EP24DC, or 1738–FPD. T OFF to ON delay is time from a valid output “on” signal to output energization. |
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ArmorPoint Serial I/O Modules
ArmorPoint Synchronous Serial Interface Modules
The Synchronous Serial Interface Absolute Encoder Module collects serial data from industrial absolute position encoding sensors that use standard SSI protocol, including linear, rotary, and optical distance measuring devices. The module is inserted into an ArmorPoint I/O terminal base that provides common power, communications, and wiring connections for the SSI sensors. The module converts a serial data stream from an SSI sensor into absolute position data readable as a 32-hexadecimal value. Gray or binary-code capable with gray to binary conversion, increasing or decreasing SSI count indication, 2 SSI word comparator values, and SSI word latching with I1 input.
ArmorPoint Serial Interface Modules
The 1738–232ASCM12 and 1738–485ASCM12 serial-interface modules offer a serial-link communication interface solution for peripheral products with RS–232 (use the 1738–232ASCM12), RS–485, and RS–422 ports (use the 1738–485ASCM12). These modules allow a device with serial-interface output (i.e., bar code readers) to communicate up to 128 bytes of ASCII data onto any network supported by ArmorPoint I/O. Each module is a single-channel, full-duplex interface and is rated for up to 38.4k baud. LED indicators on the modules offer diagnostics for the module, POINTBus backplane, and transmit/receive status indication.
ArmorPoint Serial I/O Modules
| Cat. No. | Inputs/Outputs | PointBus Current (mA) | External DC Power Supply | Power Dissipation, Max. | Termination Type |
| 1738-SSIM23 | 1 Synchronous Serial Interface channel | 110 mA | 10…28V dc 0.75 A max. |
0.94 W | M23 |
| 1738-232ASCM12 | 1 Serial Interface channel, RS232 | 75 mA | 10…28.8V DC 1.0 A max. |
1.75 W @ 28.8V DC | DC Micro (M12) |
| 1738-485ASCM12 | 1 Serial Interface channel, RS485, RS422 | 75 mA | 10…28.8V DC 1.0 A max. |
1.75 W @ 28.8V DC |
Mating Cables
The mating cables shown represent straight PVC models. For additional configurations, materials, and specifications, consult the On-Machine Connectivity catalog, publication M116-CA001.
ArmorPoint Counter Modules Mating Cables
| ArmorPoint Cat. No. | End Device per Connector | Recommended Patchcord (Double-ended) | Recommended Male Cordset (Single-ended) | Recommended Field Attachable Connector |
| 1738-IJM23 1738-VHSC24M23 |
(1) M23 12-pin | 889D-F4SCDM—¯ | 889D–M4SC—‡ | 889D-M4DC-SH |
| ¯ = length in meters (1, 2, 3, 5, and 10 standard). ‡ = length in meters (2, 5, and 10 standard). |
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ArmorPoint Serial I/O Mating Cables
| ArmorPoint Cat. No. | End Device per Connector | Recommended Patchcord (Double-ended) | Recommended Male Cordset (Single-ended) | Recommended Field Attachable Connector |
| 1738–SSIM23 | (1) M23 12-Pin | — | — | 889M–M12AH–T |
| 1738–232ASCM12 1738–485ASCM12 |
(1) DC Micro | 889D–F4SCDM—¯ | 889D–M4SC—‡ | 889D–M4DC–SH |
| ¯ = length in meters (1, 2, 3, 5, and 10 standard). ‡ = length in meters (2, 5, and 10 standard). |
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