New Allen Bradley 1785-L40B /C PLC-5 PLC-5/40 DH+/RIO Controller
48K F/W B
1785-L40b
The AB / Rockwell Automation 1785-L40B is a Standard PLC-5/40
Processor with 48K of memory. This processor includes 4 DH+ port
(mode) and universal remote I/O (adap or scan). Number of I/O
chassis max. for universal remote is 32 max. per I/O link. Total
number of I/O chassis max. is 61. 1785L40B houses 1
RS-232-C/422-A/423-A Port(s). Backplane current load for 1785-L40B
@ 5V is 3.3 A.
1785 PLC-5 Programmable Controller: The Foundation of Control
Architecture
The PLC-5 programmable controller stands at the center of a control
architecture that brings together existing and future systems by
means of networks such as EtherNet/IP, ControlNet and DeviceNet,
and offers connectivity among SLC 500, ControlLogix, and MicroLogix
controllers. Because they include embedded network connections,
PLC-5 controllers enable your control architecture to be flexible
enough to include cost- effective connections to a wide range of
devices.
A PLC-5/1771 control system, at minimum, consists of a programmable
controller and I/O modules in a single 1771 chassis with a power
supply. You choose the controller with the on-board communication
ports you need.
On-board remote I/O scanner ports are available on all PLC-5
controllers. On-board extended-local I/O scanner ports are
available on some PLC-5 controllers. On-board ControlNet ports are
available on some PLC-5 controllers. To provide a DeviceNet I/O
scanner port to the system, you must add a 1771-SDN DeviceNet
Scanner Module.
In the typical configuration illustration, a ControlNet port on the
controller interfaces the processor to the ControlNet link. In each
of the two chassis remote from the controller, a 1771-ACN15 I/O
Adapter Module provides I/O modules in those chassis with an
interface to the ControlNet link. In this configuration, the PLC-5
controller monitors/controls the I/O in its local I/O chassis as
well as the I/O in the remote locations.
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