Siemens ST PCS 7 manual Analog electronics modules EM 144, EM, 11/61, Analog output modules

© Siemens AG 2007

Process I/O

Dezentrale Peripherie ET 200pro

Analog electronics modules EM 144, EM 145

	EM 4 AI RTD High Feature
■Overview
	• 4 inputs for isolated (floating) resistance measurements or
	resistance thermometers with 2-, 3- and 4-wire connections
	• Input ranges:
	- Resistance measurement: 150 Ω; 300 Ω; 600 Ω; 3000 Ω;
	resolution 15 bit
	- Resistance thermometer: Pt100; Ni100; Ni120; Pt200; Ni200;
	Pt500; Ni500; Pt1000; Ni1000; resolution 15 bit + sign
	• Automatic compensation of line resistances with 3- and 4-wire
	connections
	• Parameterizable temperature coefficient with resistance-type
	sensors
	• Electrically isolated from load voltage supply 1L+ and 2L+
	• Linearization of sensor characteristics
	• Diagnostics "Open-circuit" per channel (terminals 1 and 3 are
	monitored for open-circuit)
	• Permissible common-mode voltage 10 Vpp AC
	Analog output modules

The following analog electronics modules can be used for con- necting actuators/sensors in the context of SIMATIC PCS 7:

Analog input modules

EM 4 AI U High Feature

•4 inputs for voltage measurements

•Input ranges:

-± 10 V, resolution 15 bit + sign

-± 5 V, resolution 15 bit + sign

-0 to 10 V, resolution 15 bit

-1 to 5 V, resolution 15 bit

•Electrically isolated from load voltage 2L+

•Diagnostics "Short-circuit of sensor supply to M" per module

•Diagnostics "Short-circuit, open-circuit" per channel (depend- ing on measuring range)

•Process interrupt with limit violation on channel 0

•Permissible common-mode voltage 5 Vpp AC

EM 4 AI I High Feature

•4 inputs for current measurements

•Input ranges:

-± 20 mA, resolution 15 bit + sign

-0 to 20 mA, resolution 15 bit

-4 to 20 mA, resolution 15 bit

•Two-wire and four-wire transmitters can be connected

•Electrically isolated from load voltage 2L+

•Diagnostics "Short-circuit of sensor supply to M" per module

•Diagnostics "Short-circuit, open-circuit" per channel (depend- ing on measuring range)

•Process interrupt with limit violation on channel 0

•Permissible common-mode voltage 5 Vpp AC

EM 4 AO U High Feature

•4 outputs for voltage output

•Output ranges:

-± 10 V, resolution 15 bit + sign

-1 to 5 V, resolution 14 bit

-0 to 10 V, resolution 15 bit

•Electrically isolated from sensor supply voltage 1L+

•Diagnostics "Short-circuit of sensor supply to M" per module

•Diagnostics "Open-circuit in outputs" per channel

•Substitute value output

EM 4 AO I High Feature

•4 outputs for current output

•Output ranges:

-± 20 mA, resolution 15 bit + sign

-4 to 20 mA, resolution 14 bit

-0 to 20 mA, resolution 15 bit

•Electrically isolated from sensor supply voltage 1L+

•Diagnostics "Short-circuit of sensor supply to M" per module

• Diagnostics "Open-circuit" per channel	11
• Substitute value output
■Technical specifications
For detailed technical specifications of the analog electronics
modules, see:
• Catalog IK PI
• Mall/CA 01 under "Distributed I/Os / ET 200pro"

Siemens ST PCS 7 · November 2007

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