Analog Modules
4-152
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Table 4-78 Minimum Possible Upper and Lower Limit Values of SM 331; AI 8 x TC in °F
Thermo-
couple
Minimum Possible
Upper Limit Value
Minimum Possible
Lower Limit Value
in °F Dec. Hex. in °F Dec. Hex.
Type B 2786.6 27866 6CDA
H
0 0 0
Type C --- --- --- --- --- ---
Type E --- --- -- --- --- --
Type J 2192.2 21922 55A2
H
<-346.0 <-3460
Type K 2501.8 25018 61BA
H
<454.0 <-4540 <EE44H
Type L 1652.2 16522 408A
H
<-328.0 <-3280 F330H
Type N --- --- --- --- --- ---
Type R, S 3216.4 3216.4 7DA4
H
-58.2 -582 FDBA
H
Type T 752.2 7522 1062
H
<454.0 <-4540 <EE44H
Type U 1112.2 11122 2B72
H
<-328.0 <-3280
End-of-scan-cycle interrupt
By enabling the end-of-scan-cycle interrupt, you can synchronize a process with
the conversion cycle of the module. The interrupt occurs when the conversion of all
the enabled channels is complete.
Table 4-79 Content of the 4 bytes with additional information from OB40 during a hardware
interrupt or an end-of-scan-cycle interrupt
Content of the 4 bytes with
additional information
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
Byte
Analog
2 bits per channel to identify the range
special
marker
Upper limit exceeded in
channel
7 6 5 4 3 2 1 0 0
Lower limit exceeded in
channel
7 6 5 4 3 2 1 0 1
End-of-scan-cycle event X 2
Unassigned byte 3
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