Rockwell Automation Publication 1769-UM022C-EN-P - June 2018 81
Communicate Over Networks Chapter 5
In
Compact GuardLogix 5370
controller systems, you can install 1769-SDN
scanners to the left or right side of the power supply. You can also use local and
extra banks in Compact GuardLogix 5370 controller systems, with each
allowing the inclusion of a 1769-SDN scanner.
In the local bank, the controller must be the left-most device in the system and
you can only install up to three modules between the controller and the power
supply. Therefore, any 1769-SDN scanners that are installed to the left of the
power supply in the local bank, are in a module slot that meets the power
supply distance rating requirements of the module.
Compact GuardLogix 5370 controller systems also support the use of extra
banks for the local expansion modules of the system. Each additional bank
requires a
1769 Compact I/O power supply. The bank can be designed with
local expansion
modules on either side of the power supply.
In this case, you must install the 1769-SDN scanner with no more three
Compact I/O modules between the scanner and the power, regardless of
whether the modules are installed to the left or right of the power supply.
Figure 13 on page 81
shows 1769-SDN scanners that are installed in a
1769-L36ERMS control system that meet the power supply distance rating of
the module.
Figure 13 - Power Supply Distance Rating Example for a 1769-SDN Scanner
Compact GuardLogix
5370 Controller
Power Supply 1769-SDN Scanner
1769-SDN Scanner
Local Bank
Extra Bank
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