126 Rockwell Automation Publication ICSTT-RM447M-EN-P - July 2019
Chapter 7 Module Overview and Specifications
T9431/2 Analogue Input Module Specification
Table 29 - Analogue Input Module Specification
1
SIL 3 is the maximum achievable for a single channel. Selected CPU, input
and output voting configurations could increase or decrease the correct SIL
achieved.
Attribute Value
Functional Characteristics
Input channels: T9431: 8
T9432: 16
Degradation 1oo1D, 1oo2D and 2oo3D
Performance Characteristics
Safety integrity level IEC 61508 SIL 3
1
Safety level degradation 1oo1D, 1oo2D and 2oo3D
Safety accuracy limit 200 μA
Self test interval < 1 hour; system dependent
Sample update interval (no filter) 6 ms
Value of least significant bit 0.98 μA
Error at 25 °C ± 2 °C
After 1 year at 40 °C
After 2 years at 40 °C
After 5 years at 40 °C
0.21 % + 10 μA
0.22 % + 10 μA
0.23 % + 10 μA
Temperature drift ( 0.01 % + 0.3 μA ) per °C
Electrical Characteristics
Module supply voltage:
Voltage Redundant + 24 Vdc nominal
Module supply power dissipation T9431: 3.3 W (11.3 BTU/hr)
T9432: 4.0 W (13.6 BTU/hr)
Input Current
Nominal 4 mAdc to 20 mAdc
Maximum range 0 mAdc to 24 mAdc
Maximum Input Slew Rate See Figure 32 below
2
Input channel load see TA Specification
Resolution 0.98 μA, 15-bit
Measurement calibrated accuracy at 25 °C ± 0.05 mA
Field loop power dissipation see 9831/2/3 TA Specification
Channel isolation - maximum withstanding ± 1.5k Vdc for 1 minute
Mechanical Specification
Dimensions (height × width × depth) 166 mm × 42 mm × 118 mm
(6-½ in. × 1-21/32 in. × 4-21/32 in.)
Weight T9431: 280 g (10 oz.)
T9432: 340 g (12 oz.)
Casing Plastic, non-flammable
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