Page 62 - GuardII+ Series 4208 Platform SM User Manual

Appendix

• Modbus response timeout should be set to no less than 5000ms

• Modbus polling should occur no more often than once per minute.

8.5. Using PLC-Style Addressing

GuardII+ uses protocol-style Modbus addressing (Base 0), not PLC-style Modbus
addressing (Base 1). When using PLC-style addressing to acquire Modbus data from
GuardII+, this will cause an address shift.
NOTE:
When accessing GuardII+ data registers using PLC-style addressing, the
address must be increased by 1.

Sample Addresses using Modbus (Base 0) Addressing
Address Data Notes
37056 G1 Measurement The measurement status for G1:
Status 0 = No data is available
1 = OK
2 = Signal is clipped
37057 G1 Measurement The measurement quality for G1:
Quality 0 = No data is available
1 = No Alert detected
3 = Low-Current Alert detected
5 = High-Current Alert detected
37058 G1 Measured The measured current from G1 in RMS.
Current This is a float value.
37060 G1 Measured The measured current from G1 in peak-to-peak.
Current This is a float value.
Other addresses follow as per Section 8.2.5

Sample Addresses using PLC (Base 1) Addressing
Address Data Notes
37057 G1 Measurement The measurement status for G1:
Status 0 = No data is available
1 = OK
2 = Signal is clipped
37058 G1 Measurement The measurement quality for G1:
Quality 0 = No data is available
1 = No Alert detected
3 = Low-Current Alert detected
5 = High-Current Alert detected
37059 G1 Measured The measured current from G1 in RMS.
Current This is a float value.
37061 G1 Measured The measured current from G1 in peak-to-peak.
Current This is a float value.

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