Hardware Configuration and Module Driver Requirements for ET 200SP Server Modules 6ES7193-6PA00-0AA0

In SIMATIC PCS 7, the server module (order number 6ES7193-6PA00-0AA0) must always be configured in the final slot of an ET 200SP distributed I/O station in HW Config, and present physically at the end of the DIN rail baseunits, to mechanically and electrically terminate the active backplane bus. When configuring an ET 200SP station with interface module IM 155-6 DP HF (6ES7155-6BU01-0CN0) under PCS 7 V9.0 SP3, failure to generate module drivers typically occurs because the server module is missing from the configuration, the correct GSD/HSP entry is absent from the hardware catalog, or channel diagnostic interrupts were not enabled in the module operating parameters. To resolve the issue, place the server module in slot 65 (or directly following the last I/O module), activate 'Diagnostic interrupt' on all I/O cards, and compile with 'Generate module drivers'.

Executive Summary

The SIMATIC ET 200SP distributed I/O system provides compact, high-density modular instrumentation interfaces for modern process and factory automation. When integrating ET 200SP stations into SIMATIC PCS 7—specifically using PROFIBUS DP interface modules such as IM 155-6 DP HF—automation engineers frequently encounter hardware compilation warnings or failure of the PCS 7 module driver generator to establish diagnostic and channel driver connections (Pcs7AnIn, Pcs7DiIn, MOD_D1). This issue commonly traces back to misunderstandings regarding the mandatory server module terminating unit or disabled channel diagnostic interrupts in HW Config. Adhering to strict hardware catalog selection and parameter rules guarantees seamless integration with the PCS 7 Basis Library.

Architecture and Fundamental Mechanics

The mechanical, electrical, and software architecture of ET 200SP stations within PCS 7 operates through specific structural rules:

The Server Module (6ES7193-6PA00-0AA0) Termination Function:
* The ET 200SP backplane bus is an active serial communication link running through interconnected BaseUnits.
* The server module physically plugs into the rightmost end of the station. It contains internal termination resistors and electronic bus return loops required to close the serial backplane loop.
* Without the server module, the interface module cannot establish backplane communication with any I/O slice, generating a permanent station fault (SF / BF).
* In STEP 7 / PCS 7 HW Config, the server module is a mandatory configuration element that must be placed in the slot immediately following the last installed I/O module (up to Slot 65).
The Module Driver Generator Mechanism:
* When compiling CFC charts with Generate module drivers enabled, PCS 7 inspects the HW Config structure and identifies released I/O modules.
* The driver generator automatically creates diagnostic blocks (MOD_D1, RACK, SUBNET) and interconnects them to technological channel drivers (Pcs7DiIn, Pcs7AnIn).
Prerequisites for Automated Driver Creation:
* Catalog Release: The interface module and I/O cards must be recognized as released modules in the PCS 7 hardware catalog. Using generic or unreleased GSD files bypasses driver generation rules.
* Diagnostic Interrupts: The driver generator requires hardware-level diagnostic triggers. If 'Diagnostic interrupt' or 'Channel diagnostics / Wire break' is disabled in the module's HW Config properties, the compiler considers the module unable to report NAMUR NE43 or hardware faults, skipping driver block generation or issuing compiler warnings.

Step-by-Step Implementation Procedure

Follow these procedures to configure the ET 200SP station and generate module drivers in PCS 7 V9.0 SP3:

Configure Interface Module in HW Config:
* Open HW Config for the target AS station in SIMATIC Manager.
* Under the PROFIBUS DP Master System (or PROFINET IO system), navigate the hardware catalog to PROFIBUS-DP > ET 200SP > IM 155-6 DP HF (order number 6ES7155-6BU01-0CN0 or bundle 6ES7155-6BA01-0CN0).
* Drag the interface module onto the network.
Insert I/O Modules and Assign Addresses:
* Insert the required digital and analog input/output modules into successive slots (Slots 1 to N).
* Open the Symbol Table and assign unique technological symbols to the input and output addresses.
Insert the Server Module in the Final Slot:
* In the hardware catalog under the ET 200SP tree, locate Server module (order number 6ES7193-6PA00-0AA0).
* Place the server module in the slot immediately following the last I/O module (e.g., if there are 8 I/O modules in Slots 1-8, place the server module in Slot 9; for a full rack of 64 modules, place it in Slot 65).
Enable Diagnostic Interrupts on I/O Modules:
* Double-click each analog and digital module in the station to open Object Properties.
* Under the Operating parameters or Parameters tab, verify that:
- Diagnostic interrupt is checked (Enable).
- Group diagnostics or Channel diagnostics is checked.
- For analog inputs, select proper measurement types (e.g., 4..20 mA 2-wire) and enable wire break detection.
- Click OK to save module parameters.
Save, Compile, and Generate Drivers:
* In HW Config, click Save and Compile and verify zero errors.
* Download the updated hardware configuration to the AS controller in STOP or RUN mode (if supported by CiR).
* In SIMATIC Manager, open CFC editor, select Chart > Compile > Scope: Changes only (or Entire program), check Generate module drivers, and click OK.

Verification

In CFC editor, open the automatically generated system charts (typically named @...). Verify that diagnostic blocks such as MOD_D1 have been created for the ET 200SP station. Open a technological CFC chart containing a channel driver (Pcs7AnIn); verify that its Mode, DataXchg, and MS pins are cleanly interconnected to the Basis Library diagnostic blocks. Verify in online test mode that field values read correctly with status 16#80 (Good).

Limitations and Operational Precautions

The server module cannot be omitted under any circumstances; operating an ET 200SP rack without the physical terminating server module prevents backplane startup. Always verify that specific ET 200SP module firmware versions and bundle order numbers are confirmed against the Siemens Industry Mall or an authorized distributor quotation prior to procurement.

Engineer FAQ

Is the server module included when purchasing an IM 155-6 interface module?

Yes. Siemens IM 155-6 interface module bundles include the interface module, the server module (6ES7193-6PA00-0AA0), and the bus connector.

What happens if the server module is placed in the wrong slot in HW Config?

HW Config will report a configuration consistency error, or the station will fail to match physical hardware during controller startup.

Why did module driver generation skip my analog input card?

Module driver generation skips cards if 'Diagnostic interrupt' is disabled in module properties or if the module MLFB is not recognized in the PCS 7 Basis Library XML rules.