Siemens ST PCS 7 사용자 설명서
Process I/O
ET 200M distributed I/O
Ex modules [EEi xb]
11/22
Siemens ST PCS 7 · November 2007
11
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Overview
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
All Ex modules come with diagnostics capability (channel and
module diagnostics).
Ex modules identified by "redundant design possible"
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.
For additional Ex modules, refer to page 11/23.
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Selection and Ordering Data
Order No.
Ex digital input module
4 NAMUR inputs in 4 channel
groups
Redundant design possible
(module redundancy)
• Voltage supply to sensors 8.2 V
• Individually floating channels
• Wire break and short-circuit
groups
Redundant design possible
(module redundancy)
• 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:
• Front connector required:
20-contact
6ES7 321-7RD00-0AB0
Ex digital output module
4 outputs, 24 V DC / 10 mA in
4 channel groups
Redundant design possible
(module redundancy)
• Individually floating channels
• Wire break monitoring
• Short-circuit monitoring
• Diagnostics inside module
• Front connector required:
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
6ES7 322-5SD00-0AB0
4 outputs, 15 V DC / 20 mA in
4 channel groups
• Individually floating channels
• Wire break monitoring
• Short-circuit monitoring
• Diagnostics inside module
• Front connector required:
4 channel groups
• Individually floating channels
• Wire break monitoring
• Short-circuit monitoring
• Diagnostics inside module
• Front connector required:
20-contact
6ES7 322-5RD00-0AB0
Ex analog input module
4 inputs, 0/4 to 20 mA in
4 channel groups
Redundant design possible
(module redundancy)
• Individually floating channels
• Resolution 15 bit + sign
• Connection of 2-wire or 4-wire
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:
• Measurement range monitoring
• Short-circuit-proof
• Diagnostics inside module
• Front connector required:
20-contact
6ES7 331-7RD00-0AB0
8 inputs in 4 channel groups
• Resolution 15 bit + sign
• Thermocouples type T, U, E, J,
• 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:
• 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).
6ES7 331-7SF00-0AB0
Ex analog output module
4 outputs, 0/4 to 20 mA in
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:
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
6ES7 332-5RD00-0AB0
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Selection and Ordering Data
Order No.
© Siemens AG 2007