Siemens ST PCS 7 manual Ex modules EEi xb, 11/22

© Siemens AG 2007

Process I/O

ET 200M distributed I/O

Ex modules [EEi xb]

■Overview	■Selection and Ordering Data		Order No.
		4 outputs, 15 V DC / 20 mA in	6ES7 322-5RD00-0AB0
		4 channel groups
		• Individually floating channels
		• Wire break monitoring
		• Short-circuit monitoring
		• Diagnostics inside module
		• Front connector required:
		20-contact
		Ex analog input module

The following analog and digital I/O modules are suitable for use in hazardous plants. They separate the non-intrinsically safe electrical circuits of the automation system and the intrinsically safe electrical circuits of the process. Sensors and actuators suitable for placing in zone 1 or 21 and 2 or 22 hazardous areas as well as intrinsically safe equipment compliant with DIN 50020 and [EEx ib] IIC can be operated on these modules.

All Ex modules come with diagnostics capability (channel and module diagnostics).

Ex modules identified by "redundant design possible"

(6ES7 321-7RD00-0AB0, 6ES7 322-5SD00-0AB0, 6ES7 331- 7RD00-0AB0, 6ES7 332-5RD00-0AB0) can also be configured redundant when used in non-hazardous plants.

	■Selection and Ordering Data		Order No.
		Ex digital input module
		4 NAMUR inputs in 4 channel	6ES7 321-7RD00-0AB0
		groups
		Redundant design possible
		(module redundancy)
11		• Voltage supply to sensors 8.2 V
		• Individually floating channels
		• Wire break and short-circuit
		monitoring (directly at the con-
		tact for contacts with external
		resistor circuit)
		• Diagnostics inside module
		• Front connector required:
		20-contact
		Ex digital output module
		4 outputs, 24 V DC / 10 mA in	6ES7 322-5SD00-0AB0
		4 channel groups

Redundant design possible (module redundancy)

• Individually floating channels

• Wire break monitoring

• Short-circuit monitoring

• Diagnostics inside module

• Front connector required: 20-contact

4 inputs, 0/4 to 20 mA in	6ES7 331-7RD00-0AB0
4 channel groups
Redundant design possible
(module redundancy)

•Individually floating channels

•Resolution 15 bit + sign

•Connection of 2-wire or 4-wire transmitters possible

•Wire break monitoring

•Measurement range monitoring

•Short-circuit-proof

•Diagnostics inside module

•Front connector required: 20-contact

8 inputs in 4 channel groups 6ES7 331-7SF00-0AB0

•Resolution 15 bit + sign

•Thermocouples type T, U, E, J, L, K, N, R, S, B (8 channels) Internal compensation; external compensation with Pt100

(2 channels), compensating box or 0/50 °C cold junction

•Resistance thermometer Pt100, Pt200, Ni100 (4 channels; 2-wire or 4-wire, 3-wire Pt100 on request)

•Wire break monitoring

•Diagnostics inside module

•Front connector required: 20-contact

Note:

A special front connector for the Ex analog input module 6ES7

331-7SF00-0AB0 enables greater accuracy when taking thermo- couple temperature measure- ments in "internal compensation" mode (see page 11/12).

Ex analog output module
4 outputs, 0/4 to 20 mA in	6ES7 332-5RD00-0AB0
4 channel groups
Redundant design possible
(module redundancy)

•Individually floating channels

•Resolution 15 bit

•For 2-wire transmitters

•Wire break monitoring

•Diagnostics inside module

•Front connector required: 20-contact

For additional Ex modules, refer to page 11/23.

11/22

Siemens ST PCS 7 · November 2007