Siemens 6ES7626-1AG01-0AE3 SIMATIC C7-626

Name: Siemens 6ES7626-1AG01-0AE3 SIMATIC C7-626
Brand: Siemens
SKU: 6ES7626-1AG01-0AE3
Price: 1556.00 EUR
Availability: InStock

€ 1.556,00

Condition

Clear

SKU: 6ES7626-1AG01-0AE3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens SIMATIC C7-626, part number 6ES7626-1AG01-0AE3, is a compact combined controller and operator panel belonging to the SIMATIC C7 product family. It integrates an S7-300 compatible CPU with an operator panel into a single unit, eliminating the need for separate PLC and HMI hardware. This all-in-one design is part of Siemens' strategy to provide space-saving automation solutions for machine-level control applications.

The C7-626 features an integrated operator panel with a monochrome display and touch or membrane keypad interface, alongside an S7-300 series CPU core that supports standard STEP 7 programming. It includes an MPI (Multi-Point Interface) port for communication with other SIMATIC devices, programming devices, and network components. The unit supports PROFIBUS-DP connectivity, onboard digital I/O, and can be expanded with standard S7-300 signal modules via the integrated backplane bus. Configuration of the HMI portion is performed using ProTool or WinCC flexible engineering software.

The SIMATIC C7-626 is primarily used in machine-level automation tasks in industries such as packaging, printing, plastics processing, and general manufacturing. Its compact, integrated form factor makes it well suited for installation in control cabinets with limited space, where both control logic and operator interface functionality are required in a single device. The unit is particularly common in standalone machine applications where a full distributed control system is not required.

Technical Specifications

Series/Product Family	SIMATIC C7
CPU Compatibility	S7-300 compatible
Display Type	Monochrome LCD
Input/Operating Voltage	24 V DC
Communication Interface	MPI, PROFIBUS-DP
Programming Software	STEP 7, ProTool / WinCC flexible
Integrated I/O	Digital inputs and outputs onboard
Expansion	S7-300 signal modules via backplane bus
Operating Temperature	0 °C to +55 °C
Storage Temperature	-20 °C to +70 °C
Relative Humidity	10 % to 95 %, non-condensing
IP Protection Rating	IP 65 (front panel)
Mounting	Panel mounting
Certifications	CE, UL

Common Error Codes & System Events

Event ID: 10000: Loss of communication between the CPU and HMI panel component
Check MPI cable connections and address settings. Verify that the MPI baud rate is consistent across all connected devices and restart the unit.
Event ID: 10001: Configuration mismatch between downloaded project and connected hardware
Re-download the project from ProTool or WinCC flexible to the C7 unit. Ensure the configured hardware matches the actual installed modules.
Event ID: 40000: CPU in STOP mode — program execution halted
Check the CPU diagnostic buffer via STEP 7 for the cause of the STOP. Correct any programming errors or hardware faults and switch the CPU back to RUN mode.
Event ID: 40022: Module access error — CPU cannot access a configured signal module
Verify that all configured S7-300 expansion modules are correctly seated on the backplane. Check module order and address assignments in the hardware configuration.
Event ID: 1: Power supply voltage out of range
Measure the 24 V DC supply voltage at the unit's power terminals. Ensure the supply is within the specified tolerance and check for loose connections or faulty power supply unit.
Event ID: 20000: HMI project download error
Check the MPI connection between the programming device and the C7 unit. Ensure the correct COM port and transfer settings are selected in ProTool or WinCC flexible and retry the download.
Event ID: 50001: Retentive memory error — loss of retain data after power cycle
Check the backup battery if fitted. If no battery is present, ensure that retentive data areas are within the supported retain memory limits defined in the hardware configuration.

Frequently Asked Questions

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

The CPU portion is programmed using Siemens STEP 7, while the HMI operator panel is configured using ProTool or WinCC flexible. Both software packages must be used together to fully configure the C7-626.

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

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

What communication interfaces are available on the 6ES7626-1AG01-0AE3?

The unit provides an MPI interface for programming and network communication, as well as a PROFIBUS-DP interface for connecting to distributed I/O and other PROFIBUS devices.

What is the supply voltage for the C7-626?

The SIMATIC C7-626 operates on a 24 V DC supply voltage, which must be provided externally and maintained within the specified tolerance range.

Is the C7-626 compatible with WinCC flexible for HMI configuration?

Yes, the HMI portion of the C7-626 can be configured using WinCC flexible as well as the older ProTool software, depending on the version of the engineering environment in use.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the power terminals using a multimeter. Verify that the supply is within tolerance and that all connectors are firmly seated.

Restore the supply voltage to the correct level. If the supply is correct but the display remains blank, the internal power supply board or display unit may be faulty and require replacement.

CPU remains in STOP mode after power on

Connect a programming device via MPI and open the CPU diagnostic buffer in STEP 7 to identify the cause of the STOP condition. Check for configuration errors or missing modules.

Correct any identified hardware configuration mismatches or programming errors in STEP 7. Ensure all configured expansion modules are present and correctly seated, then switch the CPU to RUN mode.

HMI project cannot be downloaded to the C7 unit

Verify the MPI connection between the programming PC and the C7-626. Check that the MPI address and baud rate settings in the project match those configured on the device.

Correct any address or baud rate mismatches and ensure the correct COM port or PC adapter is selected in the transfer settings of ProTool or WinCC flexible. Retry the download.

Loss of retain data after power cycle

Check whether a backup battery is installed and functional. Inspect the retentive memory configuration in STEP 7 to confirm that the data areas are within the supported retain memory limits.

Replace the backup battery if it is depleted or missing. Reduce the amount of retentive data if it exceeds the hardware limits, and re-download the configuration to the unit.

PROFIBUS-DP communication errors with connected slaves

Check the PROFIBUS cable wiring, termination resistors at both ends of the bus, and the bus address settings of all connected devices. Inspect the diagnostic buffer in STEP 7 for specific slave fault information.

Correct any wiring faults, ensure termination is applied only at the physical ends of the PROFIBUS segment, and verify that each device has a unique bus address. Replace any faulty PROFIBUS connectors or cables.

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