TX-I/O Modules
NOTE:
The 24 Vdc consumption from the modules of field devices other than current
sensors must be counted separately. Admissible current for each TXM1.8X or
TXM1.8X-ML module: 200 mA.
TX-I/O Module Consumption Data
(24 Vdc per I/O point, values in mA for supply sizing)
TXM1.
8X-ML
TXM1.
8X
TXM1.
8U-ML
TXM1.
8U
TXM1.
8D
TXM1.
16D
TXM1.
6R-M
TXM1.
6R
Function
8 Super
Universal
8 Universal
8 DI
16 DI
6 DO Relay
Intrinsic consumption
1)
35
30
60
35
25
25
30
20
General
Unconfigured I/O point
(Reserve for later configuration)
25
25
3
3
3.5
2.5
8
8
Temperature sensors Ni, PT
3)
0
0
0
0
Temperature sensor NTC
3)
0
0
0
0
Resistance
3)
0.5
0.5
1
1
10 Vdc
2)
0.5
0.5
1
1
20 mA, Supply external or 24 Vac
2)
0.5
0.5
20 mA, 2-wire
2)
20
20
AI
20 mA, 3-wire
2) 4)
25
25
10 Vdc
2)
2.5
2.5
3
3
AO
20 mA
2)
18
18
DI
Contact closed
2)
2
2
3
3
3.5
2.5
DO
Relay, contact closed
2)
8
8
1)
Including module status LED; includes LCD and all override LEDs if applicable.
2)
Including I/O status LED.
3)
Included in intrinsic consumption (no I/O status LED for temperature inputs).
4)
The table assumes 5 mA to supply the current sensor, which should be sufficient for most models. If in doubt, please refer to the
sensor data sheet.
12
Siemens Industry, Inc.
TALON TX-I/O Modules and Island Bus Technical Reference
588-587
CONFIDENTIAL: For internal use only
4/6/2010
