Siemens SIMATIC S7 - Page 754

Technical specifications
A.5 Thermocouple and RTD expansion modules (EMs)
S7-200 SMART
754 System Manual, V2.3, 07/2017, A5E03822230-AF
The EM AT04 Thermocouple (TC) analog expansion module measures the value of voltage
connected to the module inputs. The temperature measurement type can be either
"Thermocouple" or "Voltage".
● "Thermocouple": The value will be reported in degrees multiplied by ten (for example, 25.3
degrees will be reported as decimal 253).
● "Voltage": The nominal range full scale value will be decimal 27648.
Table A- 119 Wiring diagram for the EM AT04 Thermocouple 4 x 16 bit (6ES7288-3AT04-0AA0)
EM AT04 4 x 16 bit
(6ES7288-3AT04-0AA0)
Note: Connectors must be gold. See Appendix F, Spare Parts and other hardware for article number.
① TC 2, 3, 4, and 5 not shown connected for clarity.
Table A- 120 Connector pin locations for EM AT04 4 x 16 bit (6ES7288-3AT04-0AA0)
Pin
X10 (gold)
X11 (gold)
1
L+ / 24 V DC
No connection
2
M / 24 V DC
No connection
3
Functional Earth
No connection
4
AI 0+ /TC
AI 2+ /TC
5
AI 0- /TC
AI 2- /TC
6
AI 1+ /TC
AI 3+ /TC
7
AI 1- /TC
AI 3- /TC