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Siemens Simatic S7-400 User Manual

Page 331

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Analog Modules

5-115

S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07

Table 5-64 Parameters of the SM 431; AI 16

16 Bit, continued

Parameter

Scope

Parameter

Type

Default

2)

Value Range

Measurement

Measuring type

Disabled
U

Voltage

4DMU

Current
(4-wire transmitter)

2DMU

Current
(two-wire transmitter)

R-4L

Resistor
(four-conductor terminal)

R-3L

Resistor
(three-conductor terminal)

RTD-4L Thermal resistor

(linear, four-conductor
terminal)

RTD-3L Thermal resistor

(linear, three-conductor
terminal)

TC-L

Thermocouple (linear)

U

Static

Channel

Measuring range

Refer to Section 5.22.2 for the
measuring ranges of the input
channels that you can set.

"

10 V

teference
Temperature

– 273.15 to 327.67

o

C

0.00

o

C

Interference
suppression

400 Hz; 60 Hz; 50 Hz

50 Hz

Smoothing

None
Low
Average
High

None

Dynamic

Module

Ref. junction

None
RTD on Channel 0
Reference temperature value

None

1)

If you use the module in ER-1/ER-2, you must set this parameter to “No” because the interrupt lines are
not available in ER-1/ER-2.

2)

Only in the CC (central controller) is it possible to start up the analog modules with the default settings.

A Point to Note About Channels for Hardware Interrupts with the End of Scan
Cycle Trigger

You can parameterize hardware interrupts for the end of scan cycle for one of the
16 channels because the module can only trigger these interrupts on one channel.

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