FlexLogix Controller
1794 FlexLogix ControllersFlexLogix controllers can monitor and control I/O AC ross the 1794 backplane, as well as over I/O links. FlexLogix controllers can communicate with computers or other processors AC ross RS-232-C (DF1/DH-485 protocol), DeviceNet, ControlNet, and EtherNet/IP networks. To provide communication for a FlexLogix controller, install the appropriate communication interface module into the controller.
The multi-tasking operating system supports eight configurable tasks that can be prioritized. One task can be continuous. The others must be periodic or event tasks. Each task can have as many as 32 programs, each with its own local data and logic, allowing virtual machines to operate independently within the same controller.
As of December 31, 2008, FlexLogix controllers ceased to be offered for general sale; however, we plan to provide repair services and technical support for FlexLogix controllers for an additional seven years, if components remain available. For more information: http://www.ab.com/programmablecontrol/pac/flexlogix/
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| Specification | Description |
| FlexBus Output Current @ 5V DC | 653 mA |
| Power Supply | 1794-PS3 or 1794-PS13 In applications that must be compliant with CSA requirements, use a Separated Extra-Low Voltage (SELV) power supply that is compliant with IEC 610101, Annex H. |
| Battery | 1756-BA1 (94194801) - comes with the controller |
| Programming Cable | 1761-CBLPM02 to 1761-NET-AIC isolator 1761-CBLPA00 to 1761-NET-AIC isolator 1756-CP3 directly to controller 1747-CP3 directly to controller |
| Extended-Local I/O Cable | 1794-CE1 cable (0.3 m, 1 ft) 1794-CE3 cable (0.9 m, 3 ft) |
| Certifications: UL, CSA (Class I, Division 2, Group A, B, C, D), CE. | |
FlexLogix Controllers
| Cat. No. | User Memory¬ |
Power Dissipation, Max. | Thermal Dissipation, Max. | Backplane Current @ 5.1V | |
| Battery-Backed Static RAM | Nonvolatile Memory | ||||
| 1794-L34 | 512 Kbytes | 512 KbytesT | 3.5 W | 11.6 BTU/hr | 1.2 A |
| Certifications: UL, CSA (Class I, Division 2, Group A, B, C, D), CE. | |||||
| ¬ Available user memory is the amount of memory available to the user after RSLogix 5000 Enterprise Series software is connected and a null program is loaded. T Must have a series B controller with firmware revision 11 or later. |
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Controller Memory Use
The following equations provide an estimate of the memory needed for a controller.
| Controller tasks | _____ * 4000 | = | _____ bytes (minimum 1 task) |
| Digital I/O points | _____ * 400 | = | _____ bytes |
| Analog I/O points | _____ * 2600 | = | _____ bytes |
| Communication cards¬ |
_____ * 5000 | = | _____ bytes |
| ¬ When estimating memory use by communication modules, count all the communication modules in the system, not just those in the local chassis. This includes device connection modules, adapter modules, and ports on PanelView terminals. | |||
Controller Battery
The FlexLogix controller comes with one 1756-BA1 battery.
| Cat. No. | Description |
| 1756-BA1 | Lithium battery (0.59g) installed in each controller. Order only if you need a replacement. |
Compatibility
Control Distributed I/O Modules
The FlexLogix controller can control these distributed I/O modules using the I/O Configuration tree in RSLogix 5000 programming software.
| I/O Modules | EtherNet/IP | ControlNet | DeviceNet |
| 1732 ArmorBlock | Yes | No | Yes |
| 1734 POINT | Yes | Yes | Yes |
| 1734D POINTBlock | No | No | Yes |
| 1738 ArmorPoint | Yes | Yes | Yes |
| 1746 SLC | No | No | No |
| 1756 ControlLogix | Yes | Yes | No |
| 1769 Compact | No | No | Yes |
| 1771 PLC-5 | No | YesT | No |
| 1790 CompactBlock LDX | No | No | Yes |
| 1791D CompactBlock | No | No | Yes |
| 1792D ArmorBlock MaXum | No | No | Yes |
| 1794 FLEX | Yes | Yes | Yes |
| 1797 FLEX Ex | No | Yes | No |
| 1798 FLEX Armor | No | No | Yes |
| 1799 Embedded | No | No | Yes |
| ¬ Requires RSLogix 5000 programming software version 11 or later. Use the generic FLEX profile. T Use a 1771-ACN15, 1771-ACNR15 adapter module. Version 10 and later of RSLogix 5000 Enterprise Series software supports 1771 digital, analog, and specialty I/O modules. Previous versions of the software support only 1771 digital I/O modules. |
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Communicate with Display Devices
The FlexLogix controller can communicate with these display devices.
| Display Devices | EtherNet/IP | ControlNet | DeviceNet | RS-232 (DF1) | DH-485 |
| 2711P PanelView Plus terminal | Yes | Yes | Yes | Yes | No¬ |
| 6182H VersaView CE computer | Yes | Yes | Yes | Yes | No¬ |
| 2711 PanelView terminal | Yes | Yes | Yes | YesT | YesT |
| 2711 e PanelView terminal | No | Yes | No | No | No |
| 800E, 800T RediSTATION/RediPANEL operator module | No | No | Yes | No | No |
| 2706 InView message display | Yes | Yes | Yes | Yes | Yes |
| 2706 DL40 Dataliner message display | No | No | No | Yes | No |
| 2706 DL, DL50 DataLiner message display | No | No | No | Yes | No |
| 2707 DTAM Plus operator interface | No | No | Yes | YesT | YesT |
| ¬ These devices support DH-485 communication to FlexLogix and CompactLogix controllers. T Use PLC/SLC mapping. |
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Communicate with Other Controllers
The FlexlLogix controller can communicate with these controllers.
| Controller | EtherNet/IP | ControlNet | DeviceNet | RS-232 (DF1) | DH-485 |
| 1756 ControlLogix 1756 GuardLogix |
Yes | Yes | Yes | Yes | Yes |
| 1768, 1769 CompactLogix | Yes | Yes | Yes | Yes | Yes |
| 1789 SoftLogix5800 | Yes | Yes | Yes | Yes | No |
| 1794 FlexLogix | Yes | Yes | Yes | Yes | Yes |
| 5720 PowerFlex 700S with DriveLogix | Yes | Yes | Yes | Yes | Yes |
| 1785 PLC-5 | Yes¬ T | Yes | Yes‡ | Yes | NA |
| 1747 SLC | Yes§ | Yes | Yes‡ | Yes | Yes |
| 1761 MicroLogix | Yes | No | Yes‡ | Yes | Yes |
| 1762 MicroLogix | Yes | No | Yes‡ | Yes | Yes |
| 1763 MicroLogix | Yes | No | Yes‡ | Yes | Yes |
| 1764 MicroLogix | Yes | No | Yes‡ | Yes | Yes |
| 1772 PLC-2 | NA | NA | NA | Yesz | NA |
| 1775 PLC-3 | NA | NA | NA | Yesv | NA |
| 5250 PLC-5/250 | NA | NA | No | Yes | NA |
| ¬ The Ethernet PLC-5 controller must be series C, firmware revision N.1 or later; series D, firmware revision E.1 or later; or series E, firmware revision D.1 or later. T The 1785-ENET Ethernet communication interface module must be series A, firmware revision D or later. ‡ The PLC-5, SLC, and MicroLogix processors appear as I/O points to the Logix controller. Use the appropriate DeviceNet interface for the controller. § Use a 1747-L55x controller with OS501 or greater. Ø The PLC-2 controller requires a 1785-KA module for DH+ communications. z The PLC-2 controller requires a 1771-KG module for serial (DF1) communications. ª The PLC-3 controller requires a 1775-S5 module for DH+ communications. v The PLC-3 controller requires a 1775-KA module for serial (DF1) communications. |
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Communicate with Other Communication Devices
The FlexLogix controller can communicate with these communication devices.
| Communication Device | EtherNet/IP | ControlNet | DeviceNet | RS-232 (DF1) | DH-485 |
| 1770-KFD | NA | NA | Yes | NA | NA |
| 9355 RSLinx software | Yes | Yes | No | Yes | No |
| 1784-KTC, 1784-KTCx, 1784-KTCx15, 1784-PCIC(S), 1784-PCC | NA | Yes | NA | NA | NA |
| 1784-PCIDS, 1784-PCD | NA | NA | Yes | NA | NA |
| 1784-KTX, 1784-KTXD, 1784-PCMK | NA | NA | NA | NA | NA |
| 1788-CN2DN | NA | Yes | Yes | NA | NA |
| 1788-EN2DN | Yes | NA | Yes | NA | NA |
| 1788-CN2FF | NA | Yes | NA | NA | NA |
| 1203-CN1 ControlNet module | NA | Yes¬ | NA | NA | NA |
| 1203-FM1/FB1 SCANport | NA | YesT | NA | NA | NA |
| ¬ Use the generic module configuration to configure the 1203-CN1 module and a CIP generic MSG instruction to communicate with the module. T Use a CIP generic MSG instruction to communicate with the 1203-FM1 SCANport module on a DIN rail that is remote to the controller. The remote DIN rail also requires a 1794-ACN(R)15 ControlNet adapter module. |
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