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1. Connection Configuration
2. Communication Settings
3. Supported Devices

1. Command Format

## Connection Configuration

- 1:1 Connection

- 1:n Connection

NOTE

- Maximum number of External Devices (Master) is 20.

- n:1 connection

NOTE

- The number of Displays (Slaves) you can connect depends on the External Device. Check the specifications of the External Device.

- n:m connection

NOTE

- Note that there is no communication between the Displays (Slaves).

- The number of Displays (Slaves) you can connect depends on the External Device. Check the specifications of the External Device.

- Maximum number of External Devices (Master) is 20.

- Ethernet Switch/Ethernet HUB

No. | Name | Notes
--- | --- | ---
(1) | 490 NTW Cable by Scneider Electric | Using Modbus Slave TCP/IP, you can connect up to 20 master controllers to the External Device.
(2) | Ethernet Switch / Ethernet HUB by Schneider Electric 499 NEH 181 00 499 NEH 104 10 499 NEH 251 00
(3) | 10 Base-T Automation Ethernet

- Ethernet Module or Built in Ethernet Port

No. | Name | Notes
--- | --- | ---
(1) | 490 NTC 000 Cable by Scneider Electric | Using Modbus Slave TCP/IP, you can connect up to 20 master controllers to the External Device.

## 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.

## 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.

### Command Format

This driver supports the commands below.

Function | Function code | Maximum Points
--- | --- | ---
Read Coils | 0x01 | 2000 bits
Read Discrete Inputs | 0x02 | 2000 bits
Read Holding Registers | 0x03 | 125 words
Read Input Registers | 0x04 | 125 words
Write Single Coils | 0x05 | 1 bit
Write Single Register | 0x06 | 1 word
Write Multiple Coils | 0x0F | 1968 bits
Write Multiple Registers | 0x10 | 123 words
Mask Write Register | 0x16 | 1 word
Read/Write Multiple Registers | 0x17 | read: 125 words write: 121 words
Read Device Identification*1 | 0x2B / 0x0E | -

*1 Read Device Identification

Object ID | Object Name | Notes
0x00 | VendorName | Vendor name Pro-face
0x01 | ProductCode | Product Code. In the equipment settings, when the [Product Code] is not set, the model name is replied. e.g. ST-6500WAD
0x02 | MajorMinorRevision | Runtime version e.g. 3.0.0.42
0x03 | VendorUrl | Vendor URL www.pro-face.com
0x04 | ProductName | Product name BLUE
0x05 | ModelName | Model name e.g. ST-6500WAD
0x06 | UserApplicationName | Project name / Target name e.g. Project1/Target01