10.6 MEMOBUS/Modbus Communications
766 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Register No.
(Hex.)
Description
00E6 - 00E9 Reserved
00EA
Fault Description 11
bit 0 TiM [Keypad Time Not Set]
bit 1 bAT [Keypad Battery Low Voltage]
bit 2- D Reserved
bit E SCF [Safety Circuit Fault]
bit F Reserved
00EB - 00ED Reserved
00EE
Fault Description 12
bit 0 - 4 Reserved
bit 5 bCE [Bluetooth Communication Fault]
bit 6 - F Reserved
00EF - 00FA Reserved
00FB
Drive Output Current
Note:
The unit of display is different for different models.
• 0.01 A: D002 to D046, A002 to A042, B001 to B014
• 0.1 A: D059 to D273, A054 to A248, B021 to B302
8440
TimeHHMM
8441 Date Year
8442 Date MMDD
â—† Error Codes
â– MEMOBUS/Modbus Communications Error Code List
Table 10.32 lists the MEMOBUS/Modbus communications error codes.
When an error occurs, remove the cause of the error and restart communications.
Table 10.32 MEMOBUS/Modbus Communications Error Codes
Error Code
(Hex.)
Name Cause
01 Function Code Error The PLC set a function code that was not 03, 08, or 10 (Hex.)
02 Register Number Error
• The register number that is trying to access is not registered.
• A starting number that was not 0001 or 0002 (Hex.) was set when broadcasting.
03 Bit Count Error
• Read and write data quantities are more than the 1 to 16 range. (Command message data quantity is disabled.)
• The data that was read from non-consecutive holding registers contained more than 120 bytes.
• The data to be written to non-consecutive holding registers contained more than 60 bytes.
• In the write mode, the number of bytes in the message is not the number of data × 2.
21 Data Setting Error
• Writing control data or parameters made the settings go out of the permitted setting range.
• A parameter setting error occurred when writing a parameter.
22 Write Mode Error
• Tried to write a disabled parameter during run.
• When there was a CPF06 [Control Circuit Error], the master tried to write a parameter other than one of these:
– A1-00 [Language Selection]
– A1-01 [Access Level Selection]
– A1-03 [Initialize Parameters]
– A1-04 [Password]
– A1-05 [Password Setting]
– E1-03 [V/f Pattern Selection]
– o2-04 [Drive Model (KVA) Selection]
• Writes the read-only data.
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