CompoBus/D Communications Card Operations | Chapter 5 | |
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DC: Control Code
The control code is set as shown below for CompoBus/D Master Units.
C:
Destination unit address: FE (Master Unit)
Master Unit must be set for explicit messages.
Destination node address: 0 to 3F hex (0 to 63)
The Master Unit node address must be set for explicit messages.
Response setting:
ON: No response.
OFF: Response required.
Must be OFF (response required) for explicit messages.
DS: Beginning Source Word
Specify the beginning word address for the command data transferred to the CompoBus/D Master Unit. Preset the data to be transferred in consecutive words as shown in the following table.
Word address |
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| 15 to 8 |
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| 7 to 0 |
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S | Beginning response storage word |
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| Set with the PC’s variable area designation method. |
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S+1 | Example: DM 1000 |
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| 82 (DM area) 03E8 (1000 in hexadecimal) | 00 (fixed at 00 for DM area) | |||
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S+2 | Response monitor time: |
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| 0000 hex → 2 s |
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| 0001 to 028F hex → 0.1 to 65.5 s (unit: 0.1 s) |
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S+3 | Number of command data bytes (Set in hexadecimal.) |
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| Note: Command data is the data set in words S+4 onwards. |
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S+4 | Command data (Set explicit message FINS command “2801.”) | ||||
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S+5 | Node of Slave or Master for transmission |
| Explicit message service code | ||
| Address: 0 to 3F hex (0 to 63) |
| Write: 10 | Read: 0E | |
S+6 | Class ID code (Set DeviceNet class code for relevant function.) | ||||
| Set within 0001 to 002A (hex) with Inverter’s CompoBus/D Communications Card. | ||||
S+7 | Instance ID code (Set DeviceNet instance code for relevant function.) | ||||
| Set within 0001 to 0003 (hex) with Inverter’s CompoBus/D Communications Card. | ||||
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S+8 | Attribute ID code |
| Attached data (for writing) | ||
| (Set DeviceNet attribute code for relevant |
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| function.) |
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Attached data (for writing) |
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DD: Destination Information
D:
Digits 2 to 4: Number of words to transfer (001 to 128 BCD)
Set total number of words to transfer, including leading word S.
Digit 1: Destination unit number of the Special Unit (0 to F hex, 0 to 15)
Set the unit number of the Master Unit.