As part of our established product portfolio, the SIMATIC S7-300 / ET 200M system families will generally be available until 2023.
Following the product phase-out declaration, products will be available as spare parts for another ten years.
The ET 200M modular I/O station comprises:
There are no slot rules for the I/O modules. Any combination is permissible.
The ET 200M is connected via an interface module IM 153 to PROFIBUS DP or PROFINET. A connection to PROFIBUS DP using fiber-optic technology is additionally possible by means of additional optical link modules (OLM) or the optical bus terminal (OBT).
Depending on the quantity structure of the interface module (IM), different numbers and types of I/O modules can be inserted.
The full address space of the ET 200M can only be used with a suitable master.
IM 153-1 (Standard) | IM 153-2 (High Feature) | |
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Function | PROFIBUS DP standard slave, DP V1 slave with expanded functionality | PROFIBUS DP standard DP V1 slave with full S7 functionality for FM/CPRedundancy through 2 x IM 153-2Time stamp function and time-of-day synchronizationRouting of parameter settings to intelligent field devices (e.g. HART)Isochronous modeConfiguration changes in RUN in the non-redundant systemIdentification functionsFirmware update via bus |
Address volume | 128 bytes for inputs and 128 bytes for outputs each | 244 bytes for inputs and 244 bytes for outputs each |
Modules that can be used | SM; simple, non-parameterizable CPs and FMs | All SM/FM/CP/F modules without restriction |
IM153-4 PN (Standard) | IM 153-4 PN (High Feature) | |
---|---|---|
Function | Up to 12 modules can be plugged-inIntegrated 2-port switchModule replacement possible without PG (LLDP); optional: Saving the IP address and name on MMCShared Device on up to two IO ControllersMedia redundancy (MRP)Isochronous real-time communicationIRT option “high performance” | Up to 12 modules can be plugged-inIntegrated 2-port switchModule replacement possible without PG (LLDP); optional: Saving the IP address and name on MMCShared Device on up to two IO ControllersMedia redundancy (MRP)Isochronous real-time communicationIRT option “high performance”F modules (PROFIsafe)Connection to S7-400 H CPUs with system redundancy |
Address volume | 192 bytes for inputs and 192 bytes for outputs each | 672-byte inputs (for expanded HART user data) 192-byte outputs |
Modules that can be used | SM; simple, non-parameterizable CPs and FMs | All SM/FM/CP/F modules without restriction |
Easy assembly using SIMATIC S7-300 bus connectors makes ET 200M flexible and service-friendly:
The active bus modules allow reaction-free module replacement during operation:
Various modules are available for assembling the ET 200M that are mounted on a special mounting rail.
To achieve the specified thread length, an explosion-proof partition is available as spare part; it can be inserted between two bus modules.
For ET 200M, single-phase power supplies are available with 2 A, 5 A and 10 A as special variants.
The user program of the automation system can access the inputs/outputs of the modular ET 200M I/O devices as well as the inputs/outputs of the central controller.
Communication over the bus system is fully handled by the master interface in the central controller and by the IM 153 interface.
The diagnostics functions verify the proper operation of the ET 200M.
The ET 200M can diagnose:
The diagnostics data is evaluated as follows:
Configuration message frame | Parameter assignment frame | |
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Length | 15 bytes + 5 bytes per S7-300 I/O module | 10 bytes + 20 bytes per programmable S7-300 I/O module |
Calculation of the required message frame length for the configuration and parameterization message frames
The DP master must provide the required amount of configuration and parameterization data. A few masters offer a shorter configuration and parameterization message frame length. For example, the maximum lengths of the configuration and parameterization message frames in the S5-95U/DP are 32 bytes each. This means in this example that a maximum of 3 modules can be plugged into the ET 200M, where one of them may be parameterizable.
When connecting the device to master modules which have not been configured with COM PROFIBUS or STEP 7 (operated on master modules of other manufacturers), a fixed pre-allocated GSD file may be created by COM PROFIBUS as of version 3. This is then loaded into the configuration tool of the other vendor and can be used for simple configuration of the station.
This allows use of the convenient plain text parameterization of COM PROFIBUS, eliminating the hexadecimal code entries in the configuration tool of the vendor.
A suitable master is required to use the full addressing range of the IM 153.
General technical data ET 200M | |
Cables and connections | Screw and spring-loaded connections in permanent wiring |
Degree of protection | IP20 |
Ambient temperature on vertical wall (preferred mounting position) | |
with horizontal assembly | 0 to +60 °C |
with other assembly | 0 to +40 °C |
Relative humidity | 5 to 95% (RH stress level 2 according to IEC 1131-2) |
Atmospheric pressure | 795 to 1080 hPa |
Mechanical stress | |
Vibrations | IEC 68, parts 2 – 6: 10 – 57 Hz (const.amplitude 0.075 mm) 57 – 150 Hz (constant acceleration 1 g) |
Shock | IEC 68, parts 2 – 27 half-sine, 15 g, 11 ms |
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