Siemens S5-135U/155U appendix Front Connector Assignments

Analog Input/Output Modules

Front Connector

Assignments

Voltage or current input	Resistance thermometer
or connection of two-wire transducer

	Connection of					Front Strip	Block Diagram			Connection of	Front Strip	Block Diagram
	Process Signal					Pin	of the Module			Process Signal	Pin	of the Module
	Lines									Lines
	F+				1		t			F+	1	t
F±
					2					F±	2
L+					3						3
										L+
					4						4
	+		CH.0							CH.0
1)					5						5
	±
	+				6					CH.1	6
											7
1)	±				7
	+				8		ADU				8	ADU
1)					9		RangeCard1			CH.2	9	RangeCard1
	±								Inputs
	+			10							10
1)				11						CH.3 11
	±
	+			13					Voltage		13
1)				14						CH.4 14
	±
	+			15					Measuring	CH.5	15
1)				16							16
	±
	+			17							17
1)				18						CH.6 18
	±
	+			19							19
1)				20						CH.7 20
	±
							I				22	I trip
Comp.±				22			trip			Comp.±
Comp.+					23	Range Card 3 RangeCard2		S5±BusansteuerungDatenspeicher und		Comp.+	23	Range Card 3 RangeCard2	Data Memory ControlandBusS5
3)L+					24					3) L+	24
	+				25						25
										CH.0 26
1)	±			26
	+				27						27
										CH.1 28
1)	±			28
	+				29						29
										CH.2 30
1)	±			30					Supply
	+				31						31
										CH.3 32
1)	±			32
		+		34					Power		34
									Constant	CH.4 35
	MU ±			35		L+
	2)	+		36		L±					36	Range Card 4
										CH.5 37
	MU ±			37		Range Card 4	6ES5 498±1AA51
	2)	+		38						CH.6	38
	MU			39							39
	2)	±
				40							40
	MU	+								CH.7
				41							41
		±
	2)				42						42
L±						0 Vgnd (L±)				L±		0 Vgnd (L±)
	CH.15

Figure 9-25 Front Connector Assignments

Two-wire transducers can only be connected in the 500 mV mode.

Connect L- to the central ground point (reference potential).

1)Observe permissible potential difference between sensor and reference potential of modules or between sensors.

2)Two-wire transducer

3)Only required to switch off the tripping current without broken wire detection; (0 V at common ground point with L-).

9-76	System Manual
	C79000-G8576-C199-06