SIEMENS 6ES7138-4DF01-0AB0 Serial Interface Module

Technical Specifications for 6ES7138-4DF01-0AB0

Full Description:

The ET 200S 1SI serial interface module is a plug-in module belonging to the ET 200S product range. It provides access to serial communication by means of three hardware interfaces (RS 232C, RS 422 and RS 485) and two software protocols (ASCII and 3964(R)).

You can use the ET 200S 1SI interface module to exchange data between automation systems or computers by means of a point-to-point connection. All communication is based on serial asynchronous transmission.

You select the communication mode when you parameterize the module in the STEP 7 hardware configuration or some other configuration application. Six versions of the module appear in the hardware catalog:
● ASCII (4B)
● ASCII (8B)
● ASCII (32B)
● 3964R (4B)
● 3964R (8B)
● 3964R (32B)

8-byte or 32-byte data transfers increase the throughput rate, but require more I/O memory on the ET 200S rack, whereas 4-byte data transfers require less I/O memory on the ET 200S rack, but provide a lower throughput rate. The module variant you choose depends on your application requirements. 

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