FUNCTION CODE DEFINITIONS
ENHANCED ANALOG SLAVE DEFINITION FUNCTION CODE (FC 215)
I-E96-301B
C - 3
S1
Specification S1 is the analog slave expander bus address of
the Universal Analog Input Slave Module (IMASI03).
S2
This specification contains the block address of the first
Enhanced Analog Input Definition (Function Code 216) func-
tion block describing one of the channels on the slave module.
S3
This specification contains the block address of the cold junc-
tion reference temperature used for compensation of thermo-
couple inputs. S3 should refer to the function code 215 output
block if the built-in cold junction reference is used (see Figure
C-1). The value of the function code 215 output block is in
degrees C.
If a remote cold junction reference is needed, refer to function
code 216 specification 4 and Note 3 in Table
. Figure C-2
shows an example of remote cold junction reference.
Select the cold junction reference input by configuring specifi-
cation 3 of function code 215 with the block output of the cold
junction reference for the slave addressed in specification 1 of
function code 215.
Figure C-1. Local Cold Junction Compensation
R = 25
L 1
Ω
TYPE E
THERMOCOUPLE
R = 25
L 2
Ω
R = 25
L 1
Ω
TYPE K
THERMOCOUPLE
R = 25
L 2
Ω
IMASI03
IMASI03 TO
T.D. CABLE
TERMINATION
DEVICE
1
(215)
100
(216)
110
(216)
111
(216)
125
INPUT 1
INPUT 2
INPUT 3
INPUT 4
2
INPUT 5
INPUT 6
INPUT 7
INPUT 8
INPUT 9
INPUT 10
INPUT 11
INPUT 12
INPUT 13
INPUT 14
INPUT 15
INPUT 16
S1
S2
S3
S1
S2
S3
S4
S5
S10
S11
S1
S2
S3
S4
S5
S10
S11
S1
S2
S3
S4
S5
S10
S11
DEFAULT
1
110
100
1
111
1
03
0
50
22
1
125
2
05
0
50
22
1
2
16
04
1
80
22
S10
•
•
•
•
•
•
•
•
NOTES:
1. IMASI03 REQUIRES ONE NTAI06 TERMINATION UNIT OR TWO NIAI05 TERMINATION MODULES.
2. IN THIS EXAMPLE, INPUT CHANNELS 3 THROUGH 15 ARE NOT CONFIGURED.
TP35265A
+
+
+
+
+
+
–
–
–
–
–
–
1
14
2
15
3
16
R = 40
L 1
Ω
TYPE J
THERMOCOUPLE
R = 40
L 2
Ω