Siemens Simatic M7-400 Reference Manual page 220

Analog Modules
Table 5-1 Analog Input Modules: Characteristics at a Glance, continued
SM 431;
Module
AI 8
Bit
(-1KF00-)
Characteristics
Max. Permissible Between
Common Mode the chan-
Voltage nels or be-
tween the
reference
potential of
the con-
nected
sensors
and M
ANA:
30 VAC
Ext. Power Supply No
Necessary
Special Features –
2-DMU Two-wire transmitter
Table 5-2 Analog Output Modules: Characteristics at a Glance
Characteristics
Number of outputs
Resolution
Output type
Programmable diagnostics
Diagnostic Interrupt
Substitute value output
Potential relationships
5-4
SM 431; SM 431;
13 AI 8 14 AI 8 14
Bit Bit
(-1KF10-) (-1KF20-)
Between Between
the chan- the chan-
nels or be- nels or be-
tween the tween the
channel reference
and central potential of
ground the con-
point: nected
sensors
120 VAC
and M
ANA:
8 VAC
24 VDC 24 VDC
(only with (only with
current, current,
2-DMU) 2-DMU)
Suitable for Rapid A/D
tempera- change,
ture mea- suitable for
surement highly dy-
namic pro-
Tempera-
cesses
ture sensor
types can Smoothing
be parame- of the mea-
terized sured val-
ues
Lineariza-
tion of the
sensor
character-
istic curves
Smoothing
of the mea-
sured val-
ues
Module
S7-400, M7-400 Programmable Controllers Module Specifications
SM 431; SM 431; SM 431;
AI 13 16 AI 16 16 AI 8 RTD
Bit Bit
(-0HH0-) (-7QH00-) (-7KF10-)
Between Between Between
the chan- the chan- channel
nels or be- nels or be- and central
tween the tween the ground
reference channel point:
potential of and central
120 VAC
the con- ground
nected point:
sensor and
120 VAC
central
ground
point:
2 VDC/AC
24 VDC 24 VDC No
(only with (only with
current, current,
2-DMU) 2-DMU)
– Suitable for Resistance
tempera- thermome-
ture mea- ter can be
surement parameter-
ized
Tempera-
ture sensor Lineariza-
types can tion of the
be parame- sensor
terized character-
istic curves
Lineariza-
tion of the Smoothing
sensor of the mea-
character- sured val-
istic curves ues
Smoothing
of the mea-
sured val-
ues
SM 432; AO 8
(-1HF00-)
8 outputs
13 bits
Channel by channel:
•
Voltage
•
Current
No
No
No
Analog section isolated from:
•
CPU
•
The load voltage
SM 431;
AI 8 16
16 Bit Bit
(-7KF00-)
Between
the chan-
nels or be-
tween the
channel
and central
ground
point:
120 VAC
No
Internal
measuring
resistor
Field con-
nection
with inter-
nal refer-
ence tem-
perature
(included
with the
module)
Smoothing
of the mea-
sured val-
ues
13 Bit
A5E00069467-07