Regardless of mode (ZPA, PLC I/O, ConveyLogix program); a Stop Command completely inhibits any rotation of a motor connected to either Motor Port.
How the module’s digital outputs respond to a Stop Command is dependent upon what mode the module is in and its settings in EasyRoll. When placing a module into PLC I/O Mode from the Connections tab from the Advanced Dialog; there is a drop down box for the user to select how to respond when there is a communications loss with the PLC. The choices are to turn off the outputs of leave them in their last state. This setting also affects how the outputs respond during a Stop Command
Control Port Outputs
The state of the Control Port digital outputs during a Stop Command depends upon the following:
Whether the module is in ZPA Mode or PLC I/O Mode
Whether or not a Stop Button was assigned during ConveyStop Stop Group configuration
The selection of the * On PLC Disconnected* option from the Connections Tab in EasyRoll
The following chart indicates the state of the corresponding Left or Right Control Port digital output while a Stop Command is Active based upon these factors:
| ERSC Mode | Stop Button on Port | Port Output State |
|---|---|---|
| ZPA | No | Unaffected by Stop Command. Output will reflect the blocked/clear status of the zone |
| ZPA | Yes | Energized while Stop Command is Active, otherwise OFF |
| ZPA with PLC control of Control Port option enabled in EasyRoll | N/A | State determined by On PLC Disconnected option setting in EasyRoll |
| PLC I/O | No | State determined by On PLC Disconnected option setting in EasyRoll |
| PLC I/O Mode | Yes | Energized while Stop Command is Active, otherwise OFF |
Motor Ports in Digital I/O Mode
For the Left and Right Motor Ports in Digital Mode, the state of these outputs is determined by the On PLC Disconnected setting on the Connections Tab in EasyRoll