### Settings of External Device

#### Ladder Software Setting

1. Right-click [root] in the browser of the ladder software "MPE720" and select [Group Folder] from [New].

2. The [New] dialog box is displayed. Enter the optional group name (ex. "GROUP") and click [OK].

3. The group folder (ex. "GROUP") is created under the [root] in the browser of "MPE720". Right-click the folder and select [Order Folder] from [New].

4. The [New] dialog box is displayed. Enter the optional order name (ex. "ORDER") and click [OK].

5. [ORDER] is created under the [root]-[GROUP] in the browser of "MPE720". Right-click it and select [PLC Type] from [New].

6. The [PLC Type] dialog box is displayed. Enter the optional PLC name and CPU name and select your External Device for [Device Name], then click [OK].

7. The PLC folder (ex. "PLC") is created under the [root]-[GROUP] in the browser of "MPE720". The CPU folder (ex. "CPU1") is created under the PLC folder. Double-click [CPU1] to display the [CPU Logon] dialog box.

8. Enter "User name" and "Password" optionally in the [CPU Logon] dialog box and click [OK].

9. Multiple folders are created under the [root]-[GROUP]-[PLC]-[CPU1] in the browser of "MPE720".
   Double-click [Definition Folder]-[Module Configuration] to open the [Engineering Manager] window.

10. Select your link unit in [Module] of the [No.00] field in the [Rack1] tab.

11. Double-click the same [No.] field as your slot number to display the setting window.

    Setup Items | Setup Description
    --- | ---
    Transmission Protocol | Memobus
    Master/Slave | Slave
    Device address | Device address of the External Device
    Serial I/F | RS-232C
    Transmission Mode | RTU
    Data Length | 8 bits
    Parity Bit | even
    Stop Bit | 1Stop
    Baud Rate | 19.2K
    Send Delay | Not specified
    Auto Reception*1 | Not specified

*1When [Auto Reception] is set to [Not specified], the ladder program is required to communicate the Display with the External Device. It is not required in case of [Specified].

#### Example of Ladder Program

NOTE

- The ladder program is required when connecting the Display to CN1, CN2, CN3 on the transmission module CP-217IF by YASKAWA Electric Corporation, or to the memobus port (port1, port2) on the CPU.
- This ladder program example enables to communicate the 1 connecting port with the Display. Note that each connecting port requires the ladder program when you use multiple connecting ports to communicate simultaneously.
- Use the ladder software to perform the communication settings on the External Device. Those settings are not performed in this ladder program.

NOTE

- To communicate with the invalid auto reception function on port 1 or port 2 of the MP920 series CPU unit, "Auto reception function invalid (*1)" of the above ladder program example is needed.
  In the above ladder program example, the auto reception function of port 1 becomes invalid. To make the auto reception function of port 2 invalid, change SB006490, SB006941 of the "Auto reception function invalid (*1)" to SB006950 and SB006951.
- Please refer to the manual of the ladder software for more detail on other setting description.