PLC Developers Guide / ZPA Mode Control / PLC Inputs for ZPA Mode
Local Zone Status |
ConveyLinx ERSC ✅ | ConveyLinx-Ai 24V ✅ | ConveyLinx-Ai 48V ✅ |
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| ConveyLinx-ECO ✅ | ZPA Mode ✅ | PLC I/O Mode ❌ | |
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| Register Name | Internal Address | Assembled PLC Address | Description | ||
| Local Status Upstream Zone Forward Direction |
4:0116 | M: 4:1500 (Lo) E: I.Data [0] (Lo) P: Byte 1 |
Unsigned Value of Byte | ||
| 0×01 = | Zone Sensor clear and motor stopped | ||||
| Local Status Upstream Zone Reverse Direction |
4:0116 | M: 4:1500 (Hi) E: I.Data [0] (Hi) P: Byte 0 |
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| 0×02 = | Zone sensor clear, motor running, accepting from upstream | ||||
| Local Status Downstream Zone Forward Direction |
4:0196 | M: 4:1501 (Lo) E: I.Data [1] (Lo) P: Byte 3 |
0×04 = | Zone sensor blocked, motor running, discharging to downstream | |
| 0×05 = | Zone sensor blocked and motor stopped | ||||
| Local Status Downstream Zone Reverse Direction |
4:0196 | M: 4:1501 (Hi) E: I.Data [1] (Hi) P: Byte 2 |
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| 0×06 = | Busy (state when ConveyStop active) | ||||
The values 0xXX01 thru 0xXX06 are shown because these are the possible logical values used for inter-module communication. External networked devices (PLC or PC) monitoring these registers may; depending on their scan rate, not actually see each of these values change in sequence as a Carton is conveyed from zone to zone, even though the inter-module communications and ZPA is functioning normally.