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

## Connection Configuration

NOTE

- To connect the Display to MELSEC iQ-R/iQ-F, use the iQ-R/F Series Ethernet(SLMP Client) driver.
  In an environment where the Q/QnA Series Ethernet driver is already being used, and only when you cannot add a new driver should you use the Q/QnA Series Ethernet driver to connect the MELSEC iQ-R/iQ-F.

- 1:1 Connection

- 1:n Connection

NOTE

- Maximum number of External Devices is 64.

- 1:n connection (access beyond network)

You can access other stations via MELSECNET/H, MELSECNET/10, Ethernet, or Q Series C24 unit.

NOTE

- Maximum number of External Device is 64.

- When communication over the network, set the timeout to a value greater than the relay station's response monitoring time.

- When the relay station is iQ-R series, use units with firmware version 9 or later.

- The iQ-F series cannot be used as a relay station.

- Available devices and address ranges for an External Device that uses the network to communicate are limited to the devices and address ranges of the relay station.

- When using the Ethernet interface module QJ71E71-100 on the connected station to access another station through the C24 unit, make sure that the top five digits of the Ethernet interface unit's serial number is 24032 or greater.
  Additionally, when accessing other stations through the C24 unit, the routing setting is required for the CPU unit of the relay station.
  For information on how to set up routing, refer to the External Device manual.

Setting example for access outside the network are shown below.

External Device to Access | Port No. | Station No. | Network No. | PC No. | Request destination module I/O No. | Request destination module Station No.
External Device (1) | 1025 | 5 | 0 | 255 | 1023 | 0
External Device (11) | 1026 | 5 | 2 | 6 | 1023 | 0
External Device (22) | 1027 | 5 | 3 | 8 | 32 | 15

- n:1 Connection

NOTE

- The number of Displays you can connect depends on the External Device.
  MELSEC-Q Series: Up to 16 units*1
  MELSEC-QnA Series: Up to 8 units.*2
  MELSEC-L Series: Up to 16 units.
  MELSEC iQ-R Series: Up to 16 units.
  MELSEC iQ-F Series: Up to 8 units.

*1 When transmitting data via the External Device's OPEN Setting feature instead of the Auto OPEN UDP Port feature, up to 16 Displays can be connected. Also, when using the External Device's Auto Open UDP Port feature, there is no limitation for the number of Display units that can be connected.

*2 When transmitting data via the External Device's parameter setting instead of the Auto OPEN UDP Port feature, up to 8 Displays can be connected. Also, when using the External Device's Auto Open UDP Port feature, there is no limitation for the number of Displays that can be connected.

- n:m Connection

NOTE

- The number of Displays you can connect depends on the External Device.
  MELSEC-Q Series: Up to 16 units*1
  MELSEC-QnA Series: Up to 8 units.*2
  MELSEC-L Series: Up to 16 units.
  MELSEC iQ-R Series: Up to 16 units.
  MELSEC iQ-F Series: Up to 8 units.

- Maximum number of External Devices is 64.

*1 When transmitting data via the External Device's OPEN Setting feature instead of the Auto OPEN UDP Port feature, up to 16 Displays can be connected. Also, when using the External Device's Auto Open UDP Port feature, there is no limitation for the number of Display units that can be connected.

*2 When transmitting data via the External Device's parameter setting instead of the Auto OPEN UDP Port feature, up to 8 Displays can be connected. Also, when using the External Device's Auto Open UDP Port feature, there is no limitation for the number of Displays that can be connected.

- Multi CPU System

  NOTE

  - For CPU's Unit No., No.1 is allocated to the CPU slot and No.2, 3, and 4 are allocated to the other slots from No.1 to right.
  - With Multi CPU System, it's possible to access a CPU unit that is not directly connected.

## 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.