Honeywell ISM BAND XYR 5000 LINE User Manual download pdf (Page 40)

6.5.4 Transmitter Device Status Registers

The following are the values for the Device Status holding registers. These registers are

bit field registers represented as a 32-bit floating point values for Transmitters.

Value Transmitter Device Status

1 Transmitter Online

2 Low Battery Condition

► 4 Alarm Condition (WN571 only)

8 Sensor Error Condition

16 Sensor Overrange Condition

32 System Error Condition

64 Switch Input 1 Closed

128 Switch Input 2 Closed

► 256

Sq. Root Funct. (Diff. Pressure only - see

below)

Again, like Section 6.4.3, the status can be resolved by subtracting the largest number

listed above from the value received from the holding register, and then subtracting the

next highest and so on until the result is 0. Each of the values used indicate the

respective condition listed above.

For example, the holding register reads 9, then subtract 8 and get 1. Then subtract 1

from 1 and get 0. Thus from the list above, we have a Sensor Error Condition and the

Transmitter is online.

6.6 Square Root Function

The Square Root Function only works with the Differential Pressure Transmitter. When

the DP Transmitter is in Orifice mode, a Square Root calculation is performed. You have

the option to display the Square Root Calculation. If this option is enabled, it will be

displayed as Percent Square Root in WMT and sent to a Modbus Register.

The Square Root Calculation must be enabled through WMT. To display the Square Root

Calculation, first open the Configuration dialog box for the DP Transmitter and select the

Operation Mode tab. Make sure you have selected Orifice Flow from the mode menu.

Then, from the Flow Units drop-down list, select Percent - Vol Flow. If the Density check

box is selected, then Percent - Mass Flow can also be selected from the Flow Units

drop-down list to show the Square Root Calculation.

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Honeywell ISM BAND XYR 5000 LINE User Manual Page 40