The drive uses function code 67 (Hex.) and subfunction code 010D (Hex.) to read data with a maximum of 120 holding registers. You must give the holding register number from which to read separately. Table 1 shows example messages when you read the frequency reference and torque limit from the drive for slave 1. Table 1 uses this register data for the examples. 0024H: U1-01 [Frequency Reference] = 60.00 Hz (6000 = 1770H) 0028H: U1-09 [Torque Reference] = 100.0% (1000 = 03E8H) Table 1. Message Example When Reading the Contents of Non-Consecutive Holding Registers Byte Command Message Response Message (When Normal) Response Message (When There is a Fault) Setting Data (Hex.) Setting Data (Hex.) Setting Data (Hex.) 0 Slave address 01 Slave address 01 Slave address 01 1 Function code 67 Function code 67 Function code E7 2 Subfunction Code Upper 01 Subfunction Code Upper 01 Error code 02 3 Lower 0D Lower 0D CRC-16 Upper EA 4 Data Quantity Upper 00 Byte No. Upper 00 Lower 31 5 Lower 02 Lower 04 - 6 Holding register 1 No. Upper 00 Holding register 1 data Upper 17 - 7 Lower 24 Lower 70 - 8 Holding register 2 No. Upper 00 Holding register 2 data Upper 03 - 9 Lower 28 Lower E8 - 10 CRC-16 Upper 8B CRC-16 Upper 47 - 11 Lower 29 Lower ED - Note: The number of bytes set in the command message set the data quantity × 2 during the command message.