Siemens S5-135U/155U appendix Binary measuring range $ 5 V, $ 20 mA and $ 10 V bipolar

Analog Input/Output Modules

Units	Measured
	Value in V
	($5 V)
2047	4.9976
2046	4.9951
:	:
0001	0.0024
0000	0.0000
±0001	±0.0024
:	:
±2047	±4.9976
±2048	±5.0000

Value and sign; measuring range $ 5 V, $ 20 mA and $ 10 V; bipolar

Measured	Measured				Byte 0 *									Byte 1 *
Value in V	Value in V	7	6	5	4	3	2	1	0	7	6	5	4	3	2	1	0
($10 V)	($20 mA)
		212 211 210			29 28		27 26 25			24 23 22 21 20 A						E	O
9.9951	19.9902	0	0	1	1	1	1	1	1	1	1	1	1	1	0	0	1
9.9902	19.9804	0	0	1	1	1	1	1	1	1	1	1	1	0	0	0	0
:	:				:									:
0.0049	0.00976	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0
0.0000	0.00000	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
±0.0049	±0.00976	1	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0
:	:				:									:
±9.9951	±19.9902	1	0	1	1	1	1	1	1	1	1	1	1	1	0	0	0
±10.000	±20.0000	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	1

A = Active bit

E = Error bit

O = Overflow bit

Binary; measuring range $ 5 V, $ 20 mA and $ 10 V; bipolar

Units Measured

Value in V

($5 V)

Measured	Measured
Value in V	Value in V
($10 V)	($20 mA)

			Byte 0 *									Byte 1 *
7	6	5	4	3	2	1	0		6	5	4	3	2	1	0
								7
212 211 210 29 28					27 26 25			24 23 22 21 20 A E O

4095	4.9976
4094	4.9951
:	:
2049	0.0024
2048	0.0000
2047	±0.0024
:	:
0001	±4.9976
0000	±5.0000

9.9951	19.9902
9.9902	19.9804
:	:
0.0049	0.00976
0.0000	0.00000
±0.0049	±0.00976
:	:
±9.9951	±19.9902
±10.000	±20.0000

A = Active bit

E = Error bit

O = Overflow bit

0	1	1	1	1	1	1	1
0	1	1	1	1	1	1	1
			:
0	1	0	0	0	0	0	0
0	1	0	0	0	0	0	0
0	0	1	1	1	1	1	1
			:
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0

1	1	1	1	1	0	0	1
1	1	1	1	0	0	0	0
				:
0	0	0	0	1	0	0	0
0	0	0	0	0	0	0	0
1	1	1	1	1	0	0	0
				:
0	0	0	0	1	0	0	0
0	0	0	0	0	0	0	1

Measuring range 0-1.25 V and 0-2.5 V; unipolar

Units

4095

4094

:

0001

0000

Measured

Value in V

(0 - 1.25 V)

1.2497

1.2494

:

0.0003

0.0000

Measured

Value in V

(0 - 2.5 V)

2.4994

2.4988

:

0.0006

0.0000

			Byte 0
	6	5	4	3	2	1	0
7
212	211	210	29	28	27	26	25
0	1	1	1	1	1	1	1
0	1	1	1	1	1	1	1
			:
0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0

				Byte 1
7	6	5	4	3	2	1	0
24	23	22	21	20	A	E	O
1	1	1	1	1	0	0	1
1	1	1	1	0	0	0	0
				:
0	0	0	0	1	0	0	0
0	0	0	0	0	0	0	1

*Same representation for the data formats:

two's complement, value and sign, binary representation.

A = Active bit

E = Error bit

O = Overflow bit

System Manual	9-93
C79000-G8576-C199-06