Siemens 6ES7134-4GB11-0AB0 - Page 17

Analog value representation
4.3 Measuring ranges
2AI I 4WIRE ST analog electronic module (6ES7134-4GB11-0AB0)
Manual, 04/2007, A5E01076100-01
17
Current measuring range: ± 20 mA
Table 4-4 SIMATIC S7 format: Measuring range ± 20 mA
Units
Measuring range ± 20 mA
Decimal Hexadecimal
Range
> 23,5150 32767 7FFF
H
Overflow
23,5150
:
20,0007
32511
:
27649
7EFF
H
:
6C01
H
Overshoot range
20,0000
14,9980
:
-14,9980
-20,0000
27648
20736
:
-20736
-27648
6C00
H
5100
H
:
AF00
H
9400
H
Nominal range
-20,0007
:
-23,5160
-27649
:
-32512
93FF
H
:
8100
H
Underrange
< -23,5160 -32768 8000
H
Underflow
Measured values in the event of a wire break in relation to enabled diagnostics
The following additional information applies to the current measuring range 4 to 20 mA:
Table 4-5 Measured values in the event of a wire break in relation to enabled diagnostics
Measured values Format Parameter assignment
1
Decimal Hexadecimal
Description
• "Wire break" diagnostics enabled
32767 7FFF
H
• "Open circuit" diagnostic message
• "Wire break" diagnostics disabled
• "Overflow/underflow" diagnostics
enabled
-32767 8000
H
• Measured value after leaving the
underrange
• "Lower limit value undershot"
diagnostic message
S7
• "Wire break" diagnostics disabled
• "Overflow/underflow" diagnostics
disabled
-32767 8000
H
• Measured value after leaving the
underrange
1
Measuring range limits for wire break and underflow detection: At 1.185 mA