Siemens 6ES7626-1CG00-0AE3 SIMATIC C7-626

Name: Siemens 6ES7626-1CG00-0AE3 SIMATIC C7-626
Brand: Siemens
SKU: 6ES7626-1CG00-0AE3
Price: 1496.00 EUR
Availability: InStock

€ 1.496,00

Condition

Clear

SKU: 6ES7626-1CG00-0AE3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens SIMATIC C7-626, part number 6ES7626-1CG00-0AE3, is a compact combined controller and operator panel belonging to the SIMATIC C7 product family. It integrates a programmable logic controller (PLC) based on the S7-300 CPU architecture with an operator panel (OP) into a single unit, eliminating the need for separate HMI and controller hardware. This all-in-one design is intended for space-constrained control cabinet installations where both control logic and local operator interaction are required.

The C7-626 features a built-in monochrome display with touch or key-based operator input, and incorporates an MPI (Multi-Point Interface) communication port for integration into Siemens automation networks. It supports STEP 7 programming software for PLC logic development and ProTool or WinCC flexible for HMI configuration. The unit provides onboard digital I/O, integrated CPU functionality compatible with the S7-300 instruction set, and supports expansion via standard S7-300 signal modules. Memory for both the PLC program and HMI project is managed through integrated RAM and a memory card slot for project backup and transfer.

The SIMATIC C7-626 is well suited for small to medium-scale machine automation tasks in industries such as packaging, material handling, food and beverage processing, and general manufacturing. Its compact integrated design makes it particularly appropriate for OEM machine builders who require a standardized, space-saving control solution. The combination of PLC and HMI in a single housing reduces wiring complexity and simplifies commissioning and maintenance.

Technical Specifications

Series/Product Family	SIMATIC C7
Display Type	Monochrome LCD
Display Size	5.7 inch
Communication Interface	MPI (Multi-Point Interface)
Input/Operating Voltage	24 V DC
Digital Inputs	16
Digital Outputs	16
CPU Compatibility	S7-300 instruction set compatible
Programming Software	STEP 7
HMI Configuration Software	ProTool / WinCC flexible
Memory Card Slot	Yes (Siemens memory card)
Operating Temperature	0 °C to +55 °C
Storage Temperature	-20 °C to +70 °C
Relative Humidity	10 % to 95 % (non-condensing)
Mounting	Panel mounting
Certifications	CE, UL

Common Error Codes & System Events

Event ID: 10000: General CPU hardware fault detected during self-test or operation
Perform a complete power cycle. If the fault persists, check for loose module connections and verify the CPU firmware version. Replace the unit if the hardware fault is confirmed.
Event ID: 10001: MPI communication error or bus fault on the MPI interface
Check MPI cable connections and termination resistors at both ends of the bus. Verify MPI address settings and ensure no address conflicts exist on the network.
Event ID: 10002: Memory card read/write error or memory card not recognized
Remove and reinsert the memory card. Verify the card is a compatible Siemens memory card. Replace the memory card if the error persists.
Event ID: 10003: I/O access error — configured I/O module not responding or not found
Check the hardware configuration in STEP 7 against the physically installed modules. Verify module seating and backplane connector integrity.
Event ID: 10004: Battery voltage low or backup battery failure
Replace the backup battery. After replacement, reload the PLC program and HMI project from the memory card or programming device.
Event ID: 10005: CPU in STOP mode due to programming error or watchdog timeout
Connect STEP 7 programming software and read the diagnostic buffer to identify the specific cause. Correct the program error and perform a warm or cold restart.
Event ID: 10006: HMI project configuration mismatch or project transfer error
Re-transfer the HMI project using ProTool or WinCC flexible. Ensure the project version is compatible with the firmware version of the C7-626.

Frequently Asked Questions

What PLC programming software is required for the SIMATIC C7-626?

The C7-626 PLC is programmed using Siemens STEP 7 software, compatible with the S7-300 instruction set. The HMI portion is configured using ProTool or WinCC flexible.

What communication interfaces does the C7-626 support?

The C7-626 includes an MPI (Multi-Point Interface) port, which allows connection to STEP 7 programming devices, other S7 CPUs, and SIMATIC HMI devices on an MPI network.

Can the C7-626 be expanded with additional I/O modules?

Yes, the C7-626 supports expansion using standard SIMATIC S7-300 signal modules connected via the integrated backplane interface, allowing additional digital and analog I/O to be added.

What is the supply voltage for the SIMATIC C7-626?

The C7-626 operates on a 24 V DC supply voltage, which must be provided externally via the power supply connector.

How is the HMI project transferred to the C7-626?

The HMI project can be transferred via the MPI interface using a PC with ProTool or WinCC flexible software, or alternatively via a compatible Siemens memory card.

Troubleshooting

Display remains blank after power on

Check that 24 V DC is present at the power supply terminals using a multimeter. Verify that the internal fuse is intact and that the power supply connector is fully seated.

Restore correct 24 V DC supply voltage. Replace the internal fuse if blown. If the display remains blank with correct supply voltage, the display unit or internal power board may require replacement.

CPU remains in STOP mode and cannot be switched to RUN

Connect STEP 7 to the MPI port and read the diagnostic buffer to identify the fault cause. Check for program errors, I/O configuration mismatches, or memory card issues.

Correct any identified program errors and reload the project. Verify the hardware configuration matches the physical setup. Perform a memory reset (MRES) and reload the program if the CPU cannot exit STOP mode.

MPI communication cannot be established with programming device

Verify MPI cable integrity and check that bus termination resistors are correctly installed at both ends of the MPI segment. Confirm the MPI address of the C7-626 in the hardware configuration.

Replace the MPI cable if damaged. Set correct termination and ensure no duplicate MPI addresses exist on the bus. Adjust the PC adapter baud rate to match the MPI network baud rate.

HMI screens display incorrectly or project fails to load

Check whether the HMI project was successfully transferred by reviewing the transfer log in ProTool or WinCC flexible. Verify that the project version is compatible with the device firmware.

Re-transfer the HMI project ensuring compatibility between software version and device firmware. If the memory card is used, verify the card is not corrupted by testing it in another compatible device.

Onboard digital outputs not switching

Verify the output load wiring and confirm that the CPU is in RUN mode. Use STEP 7 to monitor the output status bits and confirm the program logic is commanding the outputs correctly.

Correct any wiring faults on the output terminals. If the CPU is in RUN mode and the program logic is correct but outputs remain inactive, test for internal output module failure and arrange unit repair or replacement.

Condition	Repair, Used, Refurbished, New in box (sealed)