Applies To:
  • CitectSCADA 5.xx, 5.50, 5.50 Service Pack A, 5.50 Service Pack B, 5.50 Service Pack C, 6.00
  • CitectHMI 5.xx, 5.50, 5.50 Service Pack A, 5.50 Service Pack B, 5.50 Service Pack C, 6.00
Summary:
Can I use Citect's ABCLX driver to communicate to a PLC5 when it is connected to a ControlLogix gateway (i.e. PC to ControlLogix gateway via Ethernet, then ControlLogix gateway to PLC via DH+, CNet, Ethernet, etc)?
 

Solution:
No.  Citect's ABCLX driver should only be used when:
1. The first hop (i.e. PC to PLC) is Ethernet.
2. When the end device is a ControlLogix/FlexLogix/CompactLogix (i.e. the 'end device' means the PLC with the data).

Additional note: ABCLX is not suitable for very slow connections or intermittent communications such as dialup/radio/microwave/etc. In this case use OPC or ABRSLINX
 
Keywords:
ABCLX, PLC5, Allen Bradley, route, path 
 

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