Rockwell-automation Logix5000 Controllers Controller Information and S Manual de usuario descargar pdf (Pagina 11)

Connections Chapter 1

If you are And you And Then

Uninhibit a module (clear the check box) No fault occurs A connection is made to the module and the module is dynamically reconfigured (if the

controller is the owner-controller) with the configuration you created for that module. If the

controller is configured for listen-only, it cannot reconfigure the module.

Fault occurs A connection is not made to the module. The module status information changes to indicate

the fault condition.

Follow these steps to inhibit or uninhibit a module from logic.

1. Use a Get System Value (GSV) instruction to read the Mode attribute for

the module.

2. To inhibit the module, set bit 2. To uninhibit the module, clear bit 2.

3. Use a Set System Value (SSV) instruction to write the Mode attribute back

to the module.

Example:

Inhibit a Connection

If Module_1_Inhibit = 1, then inhibit the operation of the I/O module named Module_1.

1. The GSV instruction sets Module_1_Mode = value of the Mode attribute for the module.

2. The OTE instruction sets bit 2 of Module_1_Mode = 1. This means inhibit the connection.

3. The SSV instruction sets the Mode attribute for the module = Module_1_Mode.

Rockwell Automation Publication 1756-PM015F-EN-P – October 2014 11

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Rockwell-automation Logix5000 Controllers Controller Information and S Manual de usuario Pagina 11