Issue
When using STR101 to STR-107 connected to a TAC Xenta 121-FC, the LED Mode indicator will be default allocated to the Y1 output on the TAC Xenta 121-FC, which is the only analog output on the TAC Xenta 121-FC device.
Environment
TAC Xenta 120-FC
STR-101
STR-102
STR-103
STR-104
STR-105
STR-106
STR-107
Cause
When using any of STR-101 to STR-107 connected to a TAC Xenta 121-FC, the LED Mode indicator will be default allocated to the Y1 output on the TAC Xenta 121-FC device, which is the only analog output on the TAC Xenta 121-FC device.
Resolution
In ZBuilder, it is possible to move the Status LED from the default location at Y1 to K1-4.
In this case you also need to have an external power supply with 5 Volt DC for the LED indicator.
It is also possible to use 24 Volt AC power supply for the LED indicator, however this will make an incorrect temperature reading of about 0.5 degree C.
In this case, add a 5 kΩ resistance (4.7 - 5,1 kΩ) ¼W in one of three possible positions:
- Between G and KC1
- Between K1 and LED 16
- Between Mx 15 and M.
The resistor must be placed outside the STR device.
