...
Usable device ranges are shown below. Note that Input(X) and Output(Y) are Hexadecimal.
Device | Symbol | I/O Device | Type | Bit/Word | |
Melsec 1C (ACPU) | Melsec 1C (AnA/AnU) | ||||
Input | X | X0000-X07FF | X000000-X001FFF | Hex | Bit |
Output | Y | Y0000-Y07FF | Y000000-Y001FFF | Hex | Bit |
Internal Relay | M | M0000-M2047 | M000000-M008191 | Decimal | Bit |
Latch Relay | L | L0000-L2047 | M000000-M008191 | Decimal | Bit |
Step Relay | S | S0000-S2047 | S000000-S008191 | Decimal | Bit |
Link Relay | B | B0000-B03FF | B000000-B001FFF | Hex | Bit |
Annunciator | F | F0000-M0255 | F000000-F002047 | Decimal | Bit |
Special Relay | M | M9000-M9255 | M009000-M009255 | Decimal | Bit |
Special register | D | D9000-D9255 | D9000-D9255 | Decimal | Word |
Timer (point) | T | TS000-TS255 | TS00000-TS02047 | Decimal | Word |
Timer (coil) | T | TC000-TC255 | TC00000-TC02047 | Decimal | Word |
Timer (present value) | T | TN000-TN255 | TN00000-TN02047 | Decimal | Word |
Counter (point) | C | CS000-CS255 | CS00000-CS01023 | Decimal | Word |
Counter (coil) | C | CC000-CC255 | CC00000-CC01023 | Decimal | Word |
Counter (present value) | C | CN000-CN255 | CN00000-CN01023 | Decimal | Word |
Data Register | D | D0000-D1023 | D000000-D08191 | Decimal | Word |
Link Register | W | W0000-W03FF | W000000-W001FFF | Hex | Word |
File Register | R | R0000-R8191 | R000000-R008191 | Decimal | Word |
...
Reference the error code contents from the following table.
Error Code | Error type | Error contents | Solution |
00H | Impossible on RUN | Even if it is forbidden to write on RUN, it receives writing a command. | Change the configuration of on RUN to writable |
01H | Parity error | Parity bit wrong | Change the configuration of the parity bit |
02H | Sum-check error | Uncorrected Sum-check | Check the wiring of the communication |
03H | Protocol error | Receiving uncorrected statements that violate the control order of the protocol | Confirm the opponent equipment’s transfer statement and communicate after modifying |
04H | Framing error | Uncorrected stop bit configuration | Change the configuration of the stop bit |
05H | Over-run error | In the case of it receive data before the previous data receiving ended | Down the Baud rate and then try communication again |
06H | Character part error | · Statement error · Received a non-existing command · Exceeded the allowable range · Non-existent device assigned | Check the device range |
07H | Character error | In the case of receiving data that cannot be used | Confirm the opponent equipment’s transfer statement and communicate after modifying |
08H | PLC access error | Cannot communicate with CPU | Substitute CPU |
10H | PLC number error | PLC number is not “FF” or a configured station number of the network parameter | Confirm the opponent equipment’s transfer statement and communicate after modifying |
11H | Mode error | Error detection with PLC CPU | Substitute CPU |
12H | Special function module assignment error | The special function module does not exist in the assigned location | Confirm the opponent equipment’s transfer statement and communicate after modifying |
21H | Special function module bus error | Access error to the special module detected in assigned location | According to the correspondent module manual, detect an error, and solute the problem as indicated. |
...