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MC 1E ASCII master
Mitsubishi MC 1E ASCII protocol PLC address read and write driver
Open the plugin
Enter “Development Configuration → Collection Configuration”, create a device and select “Mc1E_AsciiMaster” in “Collection Plugin”.
Supported channels and data types
| Channel type | Pre-configuration check |
|---|---|
| Serial Port | Confirm that the serial port is not occupied by other programs and maintains the same baud rate, data bits, stop bits and parity bits as the device. |
| TCP Client | Confirm network reachability of the device IP, port, and gateway to the device. |
| TCP server | Confirm that the local listening address and port are available, and allow on-site devices to actively connect to the gateway. |
| UDP | Confirm the local binding address, port and firewall rules, and check the source of the packet. |
Optional data types: Boolean, Byte, Int16, UInt16, Int32, UInt32, Int64, UInt64, Float, Double, String, Decimal
This list describes types allowed by the plugin editor. Address width, arrays, string length and read/write restrictions still follow this page; it does not mean that every address supports every type.
Plugin properties
Protocol parameters
| Setting | Description |
|---|---|
| PLCID | Default: 255; fill in: text input. Set the PLCID used for protocol communication. |
Address rules
- MC 1E ASCII bit device: B, CC, CS, F, M, S, TC, TS, X, Y.
- MC 1E ASCII WORD device: CN, D, R, TN, W.
- B and W addresses are parsed in hexadecimal; when the digital part of X and Y starts with 0, they are parsed in octal, otherwise they are parsed in hexadecimal; other device addresses are parsed in decimal.
- WORD can access individual bits using “address.bitoffset” with a bit offset in the range 0 to 15.
- Example: M100, D100, D100.3, B10, W10, X010, Y10.
Device debug
Enter “Development Configuration → Collection Configuration”, select the current device then open “Protocol Debug” at the top of the workspace.
Functions
| Function | Purpose |
|---|---|
| Read and write | Read a confirmed point and write only to an approved test point. |
| Messages | View sent and received frames, protocol fields, and error details. |
Verify the configuration
Monitor D100 online in the PLC engineering tool, compare its value with the gateway variable and confirm advancing sample times.
Troubleshooting
- Match frame generation, ASCII/binary encoding and device-area radix. 1E does not use 3E routing; R extension areas follow the table on this page.
- The serial port device does not respond: Confirm that the serial port is not occupied, and check the baud rate, data bits, stop bits and parity bits.
Related links
- Collection configuration: View channel, device and common variable configuration.
- Plugin Index: Find other collection or data-forward plugins.