Справочник Пользователя для Siemens Welding System ST PCS 7

Process I/O

ET 200M distributed I/O

DI - digital input modules

11/15

Siemens ST PCS 7 · November 2007

B) Subject to export regulations: AL: N, ECCN: EAR99H

SM 321 for non-floating contacts (supply with AC voltage)

8 inputs, 120/230 V AC
• Electrically isolated in groups

of 1

• Front connector required:

40-contact

6ES7 321-1FF10-0AA0

SM 321 modules with diagnostics capability
(IM 153-2 High Feature interface module required)

for floating contacts (supply with DC voltage)

16 inputs, 24 V DC
Redundant design possible
(module and channel redun-
dancy)
• Electrically isolated in groups

of 16

• Time stamping in association

with IM 153-2 High Feature, ac-
curacy 5 ms, rising or falling
edge, can be parameterized
channel-granular

• Two short-circuit-proof sensor

supplies for 8 channels each

• Sensor supply by the module,

additional external redundant

sensor supply possible

• Diagnostics of missing sensor

supply for channel group

(8 channels)

• Diagnostics inside module
• Wire break monitoring
• Front connector required:

20-contact

6ES7 321-7BH01-0AB0

■

Selection and Ordering Data

Order No.

16 inputs, NAMUR
Redundant design possible
(module redundancy)
• Electrically isolated in groups

of 8

• Time stamping in association

with IM 153-2 High Feature, ac-
curacy 5 ms, rising or falling
edge, can be parameterized
channel-granular

• Two sensor supplies (8.2 V DC

or 18 V DC each)

• Connection of NAMUR sensors

or contacts with resistor circuit

• Pulse stretching
• Channel-granular diagnostics

(short-circuit, open-circuit, chat-

ter monitoring, discrepancy with

changeover contacts)

• Diagnostics inside module
• Front connector required:

40-contact

6ES7 321-7TH00-0AB0

■

Selection and Ordering Data

Order No.