1785-L11B/E processor

The 1785-L11B is a PLC-5 Programmable Controller. 1785-L11B is one of the enhanced programmable controllers of the PLC-5 series. The programmable controller 1785-L11B is at the very center of each control system. 

1785-L11B interconnects I/O modules both local, extended and remote, devices on various type of communication interfaces and creates one control system suited for needs associated with controlling the processes. 1785-L11B has 1 built-in port for Data Highway Plus (DH+) or Remote I/O. DH+ can be used for remote programming and monitoring of 1785-L11B, and for creating peer to peer communication between the various PLC-5 controllers. 

Remote I/O connection supports real time data exchange for I/O, operator interface, and other device. 1785-L11B has several indicators on front panel used for displaying various statuses of the controller itself. Indicator marked BATT is battery indicator (red when battery is low). Indicator marked PROC is controller RUN/FAULT indicator and it is green when the controller is in RUN mode, and red when some fault exists. 

FORCE indicator is colored amber hen I/O forces are enabled. COMM indicator is the channel 0 communication status indicator green when the channel is communicating. Channel 1A status indicator is also present, representing the status of Channel 1A.

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