Modbus TCP Slave

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Connection Configuration
Communication Settings
Supported Devices

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

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.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

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.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

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