Specifications

Technical Specifications Appendix A
423
Thermocouple and RTD Expansion Modules Specifications
Table A-24 Thermocouple and RTD Modules Order Numbers
Order Number Expansion Model EM Inputs EM Outputs
Removable
Connector
6ES7 231--7PD22 -- 0XA0 EM 231 Analog Input Thermocouple, 4 Inputs 4 Thermocouple -- No
6ES7 231 --7PB22 --0XA0 EM 231 Analog Input RTD, 2 Inputs 2RTD -- No
Table A-25 Thermocouple and RTD Modules General Specifications
Order Number Module Name and Description
Dimensions (mm)
(WxHxD)
Weight Dissipation
VDC Requirements
+5 VDC +24 VDC
6ES7 231--7PD22 -- 0XA0 EM 231 Analog Input Thermocouple,
4 Inputs
71.2 x 80 x 62 210 g 1.8 W 87mA 60 mA
6ES7 231 --7PB22 --0XA0 EM 231 Analog Input RTD, 2 Inputs 71.2 x 80 x 62 210 g 1.8 W 87 mA 60 mA
Table A-26 Thermocouple and RTD Modules Specifications
General
6ES7 231--7PD22--0XA0
Thermocouple
6ES7 231--7PB22--0XA0
RTD
Isolation
Field to l ogic
Fieldto24VDC
24 VDC to logic
500 VAC
500 VAC
500 VAC
500 VAC
500 VAC
500 VAC
Common mode input range
(input channel to i nput channel)
120 VAC 0
Common mode rejection > 120 dB at 120 VAC > 120 dB at 120 VAC
Input type Floating TC Module ground referenced RTD
Input ranges
1
TC types (select one per module)
S, T, R, E, N, K, J
Voltage range : + /-- 80 mV
RTD types (select one per module):
platinum (Pt), copper (Cu), nickel (Ni), or
Resistance
See Table A-31 for available RTD types .
Input resolution
Temperature
Voltage
Resistance
0.1° C/0.1° F
15 bits plus sign
--
0.1° C/0.1° F
--
15 bits plus sign
Measuring Princ iple Sigma-delta Sigma-delta
Module update ti m e: All channels 405 ms 405 ms (700 ms for Pt10000)
Wire length 100 meters to s ensor max. 100 meters to sensor max.
Wire loop resistance 100Ω max. 20Ω,2.7Ω for Cu max.
Suppression of interference 85 dB at 50 Hz /60 Hz/ 400 Hz 85 dB at 50 Hz/60 Hz/400 Hz
Data word format Voltage: --27648 to + 27648 Resistance: 0 to +27648
Maximum sensor dissipation -- 1m W
Input impedance ≥1MΩ ≥ 10 MΩ
Maximum input vol tage 30 VDC 30 VDC (sense), 5 VDC (source)
Input filter attenuati on --3dbat21kHz -- 3 d b a t 3 . 6 k H z
Basic error 0.1% FS (voltage) 0.1% FS (resistance)
Repeatability 0.05% FS 0.05% FS
Cold junction error ±1.5 ° C --
24 VDC suppl y voltage range 20.4 to 28.8 VDC (Class 2, Limited P ower, or sensor power from PLC)
1
The input range selection (temperature, v oltage on resistance) applies to all channels on the modul e.