M5xx Monitoring Channels' Mode

N.B. For firmware revisions 0.3.01.00 and later only
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Structure byte 3

Read/Write

The channel’s mode of operation can be read or set using the table below.
Value
0 = Over
1 = Under
2 = Window

When the relay mode is set to OVER, the function of the channel is to flag up an exception when the specified measurements are greater than the set point.

When the relay mode is set to UNDER, the function of the channel is to flag up an exception when the specified measurements are less than the set point.

When the relay mode is set to WINDOW, the function of the channel is to flag up an exception when the specified measurements are greater than the set point plus the differential OR less than the set point minus the differential. (In this mode an automatic hysteresis of 5% of the window’s range is used as a differential at the top and bottom of the window)

Write Code Example
Read Code Example