Rockwell Automation 1755-OF8 GuardPLC Controller Systems - Manual (Page 23)

Publication 1753-UM001C-EN-P - March 2010 23
Overview of Safety Controllers Chapter 1
Three ports are located on the front of the controller, providing these
non-safety-related communication options.
The COMM3 (RS-485) also supports High-Speed Safety Protocol (HSP)
for high-integrity communication with the 1753-DNSI DeviceNet
Safety Scanner.
Refer to the DeviceNet Safety Scanner for GuardPLC Controllers User
Manual, publication
1753-UM002 , for more information.
GuardPLC Distributed I/O
The following modules are available for use with the GuardPLC 1600
controllers, GuardPLC 1800 controllers, and series C GuardPLC 1200
controllers, and with series C GuardPLC 2000 CPUs. Module status is
indicated via status indicators.
Serial Port
Designation Function
COMM1
(RS-485) Modbus RTU Slave (1753-L28BBBM or 1753-L32BBBM-8A)
Profibus-DP-Slave (1753-L28BBBP or 1753-L32BBBP-8A) Read/Write
COMM2 not used
COMM3
(RS-485) GuardPLC ASCII Protocol (Read-only)/High-Speed Safety Protocol (HSP)
Cat. No. Description Inputs Outputs
1753-IB16 Input Module 16 digital (not isolated)
4 pulse test sources
NA
1753-OB16 Output Module NA 16 digital (not isolated)
1753-IB20XOB8 Input/Output
Module 20 digital (not isolated) 8 digital (not isolated)
1753-IB8XOB8 Input/Output
Module 8 digital (not isolated)
2 pulse test sources
8 positive-switching digital
2 negative-switching digital
(not isolated)
1753-IB16XOB8 Input/Output
Module 16 digital (not isolated)
2 pulse test sources
8 two-pole digital
(not isolated)
1753-OW8 Relay Output
Module NA 8 relay
1753-IF8XOF4 Analog
Input/Output
Module 8 analog 4 standard analog