Page 126 - GuardII+ Series 4208 Platform PD User Manual

Appendix

• Modbus response timeout should be set to no less than 6000ms

• 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
12000 User Range Phase A The year of the last measurement
Pair 1 Year Expressed in 4 digits (i.e., 2019)
12001 User Range Phase A The month of the last measurement
Pair 1 Month 1 = January … 12 = December
12002 User Range Phase A The day of the month of the last measurement
Pair 1 Day
12003 User Range Phase A The hour of the last measurement
Pair 1 Hour Expressed in 24-hour mode (0-23)
Other addresses follow as per Section 8.2

Sample Addresses using PLC (Base 1) Addressing
Address Data Notes
12001 User Range Phase A The year of the last measurement
Pair 1 Year Expressed in 4 digits (i.e., 2019)
12002 User Range Phase A The month of the last measurement
Pair 1 Month 1 = January … 12 = December
12003 User Range Phase A The day of the month of the last measurement
Pair 1 Day
12004 User Range Phase A The hour of the last measurement
Pair 1 Hour Expressed in 24-hour mode (0-23)
Other addresses follow as per Section 8.2 with a 1-address offset

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