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Chapter 8: RS-485 Modbus Output
65-2658XL-CH4-4 M2A-XL Transmitter Operator’s Manual
Register 25
Register 25 is the alarm 1 relay reset.
0=Latching
1=Self-Resetting
Register 26
Register 26 is the alarm 1 ON delay.
Integer values are in seconds.
Register 27
Register 27 is the alarm 1 OFF delay.
Integer values are in seconds.
Register 28
Register 28 is the alarm 2 trigger.
0=Decreasing
1=Increasing
Register 29
Register 29 is the alarm 2 normal relay state.
0=Normally De-Energized
1=Normally Energized
Register 30
Register 30 is the alarm 2 relay reset.
0=Latching
1=Self-Resetting
Register 31
Register 31 is the alarm 2 ON delay.
Integer values are in seconds.
Register 32
Register 32 is the alarm 2 OFF delay.
Integer values are in seconds.
Register 33
Register 33 is zero suppression.
Toxics and LEL: 0%-6% of full scale
Oxygen: 0%-0.7% Oxygen
The decimal point location is the same as specified in Register 1.
Register 34
Register 34 is noise filter.
Integer values in seconds.
0-60 in 5 second increments.
