Rockwell Automation GMLC Reference Manual - Manual (Page 546)

Publication GMLC-5.2 - November 1999
509
DH-485 General Fault
On Compact or 1394 GMC/1394 GMC Turbo controllers with DH-485
enabled, a DH-485 fault (Global_fault = 11) indicates that a
communication or data transfer error has occurred on the DH-485
network interface. Refer to DH-485 Fault Code for more information.
The motion controller displays the DH-485 Fault in the Terminal Window
or the runtime display (if enabled). However, this fault variable is not
available in the Expression Builder.
DH485_general_fault is a logical (Boolean) variable. It applies to IMC S
Class Compact or 1394 GMC/1394 GMC Turbo controllers with DH-485
enabled, and has a value of:
• 1 (true) a communication or data transfer error has occurred on the
DH-485 network interface, and
• 0 (false) if not
When DH-485_general_fault = 1, Global_fault 11. The motion
controller also displays the fault in the Terminal Window or the runtime
display (if enabled).
You can directly clear a DH-485 general fault using a Reset DH-485 Fault
block. See DH-485 Fault Code for more information on the conditions
that cause this fault and how to clear them.
RIO Fault
On motion controllers with the RIO option (IMC-S/2xx-R models or
1394-SJTxx-C-RL), an RIO fault (Global_fault = 10) indicates a fault in
the RIO option. See RIO Fault Code for more information on the specific
conditions that cause this fault.
The motion controller displays the RIO Fault in the Terminal Window or
the runtime display (if enabled). However, this fault variable is not
available in the Expression Builder.