Signal Modules of the S7-400
3-10
Automation System S7-400 Configuration and Use
A5E0044271 1-02
Table 3-2 Performance Characteristics of the Analog Modules, continued
Module Performance characteristics
AI 8 x 16 Bit
6ES7431-7KF0x-0AB0
This module makes high-speed acquisition of temperatures via
thermocouple (TC) possible, Every channel has its own A/D
converter and the basic conversion time is therefore independent of
the number of active channels. Resoulution and precision are
independent of the module speed. This means that very precise and
high--speed processes can be controlled, such as monitoring of the
storage temperature of turbines, for example.
• 8 isolated differential inputs for voltage/current/temperature
measurement
• 26 settings for the measuring range
• Linearization of the thermocouple characteristic curves
• 16-bit resolution
• Programmable diagnostics
• Programmable diagnostic interrupt
• Programmable interrupt for limit violation
• Analog section isolated from CPU
• The maximum permissible common mode voltage between the
channels and between the channel and the c entral ground point
is 120 V AC.
• Field connection (6ES7431-7K00-6AA0) with internal reference
temperature (included with the product)
Analog output module SM 432
AO 8 x 13 Bit
6ES7431-1HFxx-0AB0
All-purpose and easy to use module, for general use in automation
technology.
• 8 outputs
• Output channels can be programmed as voltage outputs or
current outputs
• 13-bit resolution
• Analog section isolated from CPU and load voltage
• Maximum permissible common mode voltage between the
channels and the channels against M
ANA
3 V DC.
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