SINUMERIK 802C/802D HMI Software: Backup and Upload Tools Guide

Overview

The SINUMERIK 802C baseline and SINUMERIK 802D controllers are entry-level CNC platforms frequently paired with SIMODRIVE 611 modules. The HMI on these systems is not edited with a generic SCADA package. It is part of an integrated firmware image that contains the NCK (NC kernel), PLC user program, drive parameters, and the operator interface (the on-screen menus, soft-key labels, alarm texts, and screen layouts). To recover a corrupted HMI, change the display language, or migrate data between machines, you must use the dedicated Siemens service toolchain — not a third-party HMI editor.

The three tools that matter for any 802C / 802D service intervention are:

• WINPCIN (also referenced as PCIN) — serial data transfer for NC, PLC, and HMI backups.
• SIMOCOM U — parameterization and backup of the SIMODRIVE 611 (611U / 611D) drive modules.
• 802D base PLC programming tool — STEP 7-compatible environment used to upload, edit, and download the integrated S7-200-class PLC program.

Controller Family Identification

Before selecting software, confirm which controller family and firmware branch is installed. The HMI revision and the backup file format change with the controller version.

Read the firmware banner at controller power-up (for example SW: 04.02.04 as observed on the CK6140 lathe in the field). This number selects the matching service CD revision; using a mismatched service CD is the most common cause of a refused restore.

Toolchain Components and Roles

WINPCIN — Universal Backup Client

WINPCIN is the standard Siemens Windows utility used for serial data exchange with the 802C / 802D. It transfers the entire backup archive including the NC data, the PLC user program, the compensation data tables, and the HMI image in a single transfer.

• Function: Upload (read) and Download (write) NC, PLC, and HMI data.
• Transfer medium: RS-232 (COM port on the PC) to the X2 / X10 service port on the operator panel front.
• Protocol: Siemens-specific binary protocol, 38.4 kBaud or 115.2 kBaud depending on controller version.
• Output file: a single .arc archive plus supporting files (*.ini, *.tea, alarm lists).

SIMOCOM U — Drive Parameterization

SIMOCOM U is used to parameterize the SIMODRIVE 611U (and via the appropriate device selection 611D) modules. It is the only tool that handles the drive-side data, which is stored separately from the NC/PLC/HMI archive.

• Function: Upload / download drive parameters, motor data, encoder data, and firmware.
• Connection: PROFIBUS adapter (e.g., CP5511, CP5611) or RS-232 service cable to the drive module.
• Output file: *.dnc or vendor-specific parameter files.

802D Base PLC Programming Tool

The PLC inside the 802C / 802D is an S7-200 compatible core. The matching programming tool is the 802D base PLC programming tool (the STEP 7 Micro/WIN compatible environment shipped on the 802D Toolbox CD).

• Function: Ladder / STL edit, upload, and download of the integrated PLC.
• Connection: RS-232 PPI cable to the operator panel.
• Output file: *.s7p project plus *.pce compiled blocks.

Obtaining the Software

There is no single public download for the HMI portion of the 802C / 802D. The service tools ship as a SINUMERIK Toolbox CD keyed to the controller version. Practical paths to obtain the correct version are listed below in order of preference.

1. OEM machine builder. For a machine such as the CK6140 lathe, the screen configuration, alarm text translations, and OEM-specific soft-key maps are part of the machine documentation package. Request the matching machine backup file set (NC, PLC, HMI) and the OEM install media.
2. Siemens Industry Online Support. Login to the Siemens support portal and search by controller article number (for example 6FC5510-0BA0x-0AA0). The portal exposes the service tool download and the firmware release notes.
3. Authorized Siemens distributor / service partner. Distributors with a valid CNC service contract can supply the Toolbox CD and matching firmware images.

HMI Backup and Restore Procedure

The recommended sequence for capturing and restoring the HMI portion of an 802C / 802D uses WINPCIN. The procedure assumes the operator panel service port (COM1 on the front of the HMI) is wired to a PC running WINPCIN.

Prerequisites

• PC with Windows 7 / Windows 10, a free RS-232 (or USB-to-serial with verified FTDI driver) port.
• Null-modem cable for the 802C / 802D service port (Siemens part 6FX2002-1AA0x family or equivalent crossed RXD/TXD).
• WINPCIN version matched to controller firmware (refer to Toolbox CD version list).
• Controller in service / commissioning mode (password protected, often OEM-set to EVENING or similar).

Upload Sequence (Backup)

1. Connect the null-modem cable between the PC COM port and the operator panel front connector.
2. Launch WINPCIN. Configure the COM port (COM1 or COM2), set baud to 38400 (or 115200 for 802D base V4 onward), parity none, data bits 8, stop bits 1.
3. On the controller, navigate to the system menu and enter the service area; select Data Out (data output).
4. In WINPCIN, select Receive Data and provide a destination directory and base filename (e.g., CK6140_802C_V04_02_04_backup.arc).
5. Confirm the controller side; the transfer progress is shown on both screens. Do not power down either side until WINPCIN reports End.
6. Verify the archive size and checksum on the PC; archive files for a complete 802C backup are typically 1 MB to 8 MB depending on language tables and compensation data.

Download Sequence (Restore)

1. Place the previously captured .arc file (or the OEM-supplied equivalent) in a working directory.
2. Launch WINPCIN with the same COM and baud settings.
3. On the controller, navigate to Data In (data input). The controller displays a checksum prompt.
4. In WINPCIN, select Send Data and choose the archive file.
5. Wait for the controller to acknowledge CRC OK and reboot. Do not interrupt the reboot; the controller decompresses and writes the HMI, PLC, and NC sections in sequence.
6. After reboot, navigate the HMI menu and confirm the original language, soft-key layout, and alarm texts have returned.

Drive Backup with SIMOCOM U

The SIMODRIVE 611 parameters are not included in the WINPCIN archive. A complete service backup must capture the drive data separately.

1. Install SIMOCOM U from the Toolbox CD; select the correct drive version (611U analog, 611U digital, 611D as applicable).
2. Connect the PC to the drive module either via PROFIBUS (CP5611 / CP5711) or via the RS-232 commissioning port on the drive.
3. Go online and read all parameters. Save the parameter set as CK6140_611U_param.dnc.
4. Compare the live parameters against the machine commissioning sheet (motor order number, encoder pitch, current limits). Any mismatch indicates an incomplete restore.

PLC Upload and Download

The PLC user program on the 802C / 802D is uploaded and downloaded through the same serial port used by WINPCIN, but with the dedicated PLC programming tool. Steps:

1. Open the 802D base PLC programming tool, create or open the project.
2. Set the PC / PPI cable parameters: address 2, baud 187.5 kBaud or 19.2 kBaud depending on controller option.
3. Select Upload from controller. The integrated PLC returns the project in compiled *.pce form.
4. Edit ladder / STL blocks offline, then Download to commit the changes.
5. When performing a coordinated restore with WINPCIN, upload the PLC separately, restore the HMI/NC archive, then re-download the PLC to ensure the build time and CRC are coherent.

Field-Proven Troubleshooting Matrix

Verification After Restore

A complete restore is verified by exercising each subsystem independently. Do not declare the machine healthy after only one of the following checks.

1. Power cycle the controller. Confirm the firmware banner matches the target version (e.g., SW: 04.02.04).
2. Navigate the entire HMI menu tree. Confirm the OEM screen layout, OEM alarm texts, and the desired display language.
3. Trigger a dry-run NC program (M00 then reset) to confirm the PLC-NCK handshake is alive.
4. Run the axis handwheel in each direction; confirm the drive enables and the position feedback updates.
5. Compare SIMOCOM U live parameters against the commissioning sheet.
6. Read the system log for any PLC STOP, NCK alarm, or drive fault entries from the last boot.

Notes on OEM-Specific HMI Add-Ons

Machines such as the CK6140 lathe typically include manufacturer-specific screens (turning cycles, tool tables, custom alarm strings, macro programs). These are not part of the standard Siemens 802C / 802D image. They are delivered as an OEM overlay that is merged into the HMI image during commissioning. If the overlay is lost:

• Request the OEM's machine backup package (full archive including the overlay).
• Request the OEM's update file for the specific firmware version installed (for example 04.02.04).
• Do not substitute a generic Siemens archive, as the soft-key map and PLC interface will not match the OEM machine mechanics.

Specifications Reference

FAQ