Highlights & Details
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The SIMATIC S7-300, Digital Input SM 321, potential-separated 32DI, DC 24V, 1x 40-pin SIMATIC ET 200M is a modular and universally applicable peripheral system for the control cabinet in IP20, which can be used both as central peripherals on an S7-300 and in a decentralized setup on a PROFINET or PROFIBUS ET 200M interface module. Up to 12 IO modules can be plugged into each station. The standardized construction of all modules significantly simplifies logistics and spare parts management. The ET 200M can be used for both standard and safety-related applications. Up to 12 high-channel signal (e.g., 64 digital inputs) and function modules, as well as communication processors of the S7-300, can be used as peripheral modules (the interface to the process). Thus, the ET 200M also supports modules with extended user data, such as HART modules with HART subvariables. For easy wiring, the ET 200M offers you fast connect technology, in addition to conventional connection techniques, which does not require stripping insulation.
 
Technical data
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Power dissipation: 6500 mW
Connector type: 40-pin
Digital output type: Transistor
Maximum number of digital inputs: 32
Maximum number of inputs: 32
Height: 125mm
Length: 120mm
Width: 40mm
Type: 6ES7321-1BL00-0AA0
Manufacturer part no.: 6ES73211BL000AA0
Dimensions (L x W x H): 120mm x 40mm x 125mm
Connection type: Screw/spring terminal
Input current at signal 1: 7.0A
Suitable for safety functions: FALSE
Number of digital inputs: 32
Number of digital outputs: 0
Type of input voltage: DC
Redundancy capability: TRUE
Type of digital output: None
Type of electrical connection: Screw/spring terminal connection
Explosion protection category for gas: ATEX Gas-Ex protection, Cat. 3G
Explosion protection category for dust: None
Associated apparatus (Ex ia): FALSE
Associated apparatus (Ex ib): FALSE
Configurable digital inputs: TRUE
Product Type: PLC digital input