Table 55: Register 35; Table 56: Register 36; Table 57: Register 37; Table 58: Register 39 - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-464 2/4 AI RTD configurable

Table 55: Register 35

Register
35
16-bit signed integer
The measured value Y5 is compared to this limit and the comparison result
entered in status byte Sx in bit 2, see Status Byte Description.
The resolution / LSB is in accordance with the respective process value.

Table 56: Register 36

Register
36
The measured value Y5 is compared to this limit and the comparison result
entered in status byte Sx in bit 3, see Status Byte Description.
The resolution / LSB is in accordance with the respective process value.

Table 57: Register 37

Register
37
16-bit unsigned integer
Acceptable value range 2, 3 and 4.
Coefficients for the mean value filter before calculation of Y1.
Bit 7 of the Feature register can be used to switch ON/OFF mean value filtering.
Filtering is enabled immediately after determining the measured resistance value
on the sensor input. The number of measured values averaged is indicated in
register 37 and can be configured via WAGO-I/O-CHECK. Possible values are 2
and 3 (possibly 4). Mean value filtering is switched off by default (i.e. bit 7 = 0).
The default value for register 37 is 0x0003, i.e. when filtering is active the mean
value from the last 3 measured values is output.
The mean value filter is only enabled if the determined resistance value of the
sensor does not fall below or exceed the previously determined value by 24
mOhm. Otherwise, it is not averaged and the current measured value is used as
the baseline for the next (possible) filtering.

Table 58: Register 39

Register
39
16-bit unsigned integer
In 2-wire mode, the measured resistance is reduced by the value specified in
register 22. The resolution is 1/256.
The calibration value is entered to eliminate the internal line or coil resistance.
Function
User Underrange
Function
User Overrange
Function
Coefficients
Mean value filter
Function
User calibration
Offset
Commissioning
Memory Access
EEPROM R/W
Memory Access
EEPROM R/W
Memory Access
EEPROM R/W
Memory Access
EEPROM R/W
81
Default settings
0x8001
Default settings
0x7FFF
Default settings
0x0003
Default settings
0x0000
Manual
Version 1.1.0