Siemens ST PCS 7 manual AI analog input modules, 11/19

	© Siemens AG 2007
			Process I/O
			ET 200M distributed I/O
			AI - analog input modules
■Overview		■Selection and Ordering Data Order No.

The analog input modules described here break down into

•multi-function modules for current, voltage and temperature measurements, and

•special, highly accurate modules for current and voltage mea- surements or temperature measurements.

All modules automatically supply channel-specific and module- internal diagnostics data, except module 6ES7 331-1KF01- 0AB0. With the latter module, channel failure is identified by the PCS 7 analog driver block.

The individual channels of the analog input modules can be pa- rameterized in groups independently of each other.

SM 331 modules for current, voltage and temperature measure- ments

8 inputs, individually parame-	6ES7 331-1KF01-0AB0
terizable

•Resolution 12 bit + sign

•Current measurement 0/4 to

20 mA (8 channels; 2 wires with external supply or 4 wires)

•Voltage measurement (8 channels)

•Resistance thermometer Pt100, Ni100, Ni1000, LG-Ni1000

(8 channels; 2, 3 or 4 wires)

•Front connector required: 40-contact

8 inputs in 4 channel groups	6ES7 331-7KF02-0AB0
Redundant design possible
(module redundancy)

•Changeover of measurement type by range module per chan- nel group

•Resolution 14 bit + sign

•Current measurement 0/4 to

20 mA (8 channels; 2 or 4 wires)

•Voltage measurement (8 channels)

•Resistance thermometer Pt100, Ni100 (4 channels, 2 or 4 wires)

•Thermocouples type E, N, J, K, L (8 channels),

internal compensation or exter- nal compensation with compen- sating box or 0 °C cold junction

•Wire break monitoring

•Diagnostics inside module

•Front connector required: 20-contact

2 inputs in 1 channel group	6ES7 331-7KB02-0AB0	B)
• Changeover of measurement
type by range module
• Resolution 14 bit + sign			11
• Current measurement 0/4 to
20 mA (2 channels; 2 or 4 wires)
• Voltage measurement
(2 channels)
• Resistance thermometer Pt100,
Ni100 (1 channel, 2 or 4 wires)
• Thermocouples type E, N, J, K, L
(2 channels),
internal compensation or exter-
nal compensation with compen-
sating box or 0 °C cold junction
• Wire break monitoring
• Diagnostics inside module
• Front connector required:
20-contact

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

Siemens ST PCS 7 · November 2007

11/19