Special Signal modules
5-7
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Technical specifications of the DM 370
Dimensions and Weight
Dimensions W x H x D
(in millimeters)
40 x 125 x 120
Weight Approx. 180 g
Voltages, Currents, Potentials
Current consumption from the
backplane bus
ca. 5 mA
Power loss typ. 0.03 W
5.4 Position Decoder Module SM 338; POS-INPUT;
(6ES7338-4BC01-0AB0)
Order number
6ES7338-4BC01-0AB0
Characteristics
The position decoder module SM 338; POS-INPUT is distinguished by the
following features:
• 3 inputs for the connection of maximum three absolute value encoders (SSI)
and 2 digital inputs to freeze the encoder values
• Direct reaction possible to encoder values in moving systems
• Processing of acquired encoder values of the SM 338 in user program
• Supports clocked operation
• Type of encoder value acquisition (see chapter 5.4.4) can be selected:
– Free running
– Clocked
• 24 VDC rated input voltage
• Non-isolated against the CPU
Supported encoder types
The following encoder types are supported by the SM 338; POS-INPUT:
• Absolute value encoder (SSI) with 13-bit message length
• Absolute value encoder (SSI) with 21-bit message length
• Absolute value encoder (SSI) with 25-bit message length
Supported data formats
The SM 338; POS-INPUT supports the gray code and binary code data formats.
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