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1. Connection Configuration
2. Communication Settings
3. Cable Diagram
4. Supported Devices

1. Error Codes Unique to External Device

## Connection Configuration

- 1:1 connection

## Communication Settings

Examples of communication settings of the Display and the External Device, recommended by Pro-face, are shown.

WARNING

UNINTENDED EQUIPMENT OPERATION

Read and understand the instructions in this section to ensure data is properly transferred.

## Cable Diagram

The following cable diagrams may be different from cable diagrams recommended by External Device Manufacturer.

Please be assured there is no operational problem in applying the cable diagram shown in this manual.

- The FG pin of the External Device body must be grounded according to your country's applicable standard. Refer to your External Device manual for details.

- SG and FG are connected inside the Display. When connecting the External Device to SG, design your system to avoid short-circuit loops.

- Connect an isolation unit if the communication is not stable due to noise or other factors.

## Supported Devices

Range of supported device address is shown in the table below. Please note that the actually supported range of the devices varies depending on the External Device to be used. Please check the actual range in the manual of your External Device.

WARNING

UNINTENDED EQUIPMENT OPERATION

- Do not simultaneously write to the same register from Display and External Device program.
- Do not write 16-bit word values to registers being accessed in a bitwise manner.

### Error Codes Unique to External Device

Error codes unique to External Device are shown below.

Error Code | Description | PLC Error Code
--- | --- | ---
26990 (696EH) | Data size error (exceeding 127 words) for Block Write command. | ‘AKinvalid_resetLFCR’
12336 (3030H) | Illegal command format. | ‘NK0060ET’
12339 (3033H) | Illegal device for Random Read command. | ‘NK03ET’
12340 (3034H) | Out of address range for Block read/write. | ‘NK04ET’
12353 (3041H) | Out of address range for Monitor registration. | ‘NK0AET’
12344 (3038H) | Illegal registration ID for Monitor command. | ‘NK08ET’