AP 3-3
Function Code
03H:Read the register contents
06H:Write a WORD to register
08H:Loop test
10H:Write several data to register (complex number register write)
Checksum Calculation
LRC
ex. ADDRESS
01H
FUNCTION
03H
COMMAND
01H
00H
+ DATA LENGTH 0AH
------------------------------------------
0FH------------2
’
s complement
Checksum =
F1H
CS(H) =
46H (ASCII)
CS(L) =
31H (ASCII)
CRC
CRC Check:
CRC code covers the content from node address to DATA. Please calculate it according to the
following methods.
(1) Load a 16-bit register with FFFF hex (all1
’
s). Call this CRC register.
(2) Exclusive OR the first 8-bit byte of the message, the low-order byte of the 16-bit CRC
register, putting the result in the CRC register.
(3) Shift the CRC register one bit to the right (toward the LSB), Zero-filling the MSB, Extract
and examines the LSB.
(4) (If the LSB was 0): Repeat Steps (3) (another shift)
(If the LSB was 1): Exclusive OR the CRC register with the polynomial value A001 hex (1010
0000 0000 0001), putting the result in CRC register.
(5) Repeat Steps (3) and (4) until 8 shifts been performed. When this is done, a complete
8-bit byte will be processed.
(6) Repeat Steps (2) through (5) for next 8-bit byte of the message, Continue doing this until
all bytes have been processed. The final content in the CRC register is the CRC value.
When sending the CRC value, the Low-order byte should be sent firstly, then the
High-order byte. For example, CRC value: 1241 Hex, the high-order byte should be set to
41hex and low-order byte 12hex.
Summary of Contents for E510-201-SH
Page 1: ......
Page 28: ...3 14 b 200V 2HP 1 3PH 200V 3HP 20HP 400V 3HP 25HP IP20 NEMA1 ...
Page 29: ...3 15 c 200V 25HP 400V 30HP d 200V 30HP 40HP 400V 40HP 75HP ...
Page 51: ...3 37 3 5 Standard Wiring 10V AI1 AI2 AGND E P P ...
Page 72: ...4 6 4 1 4 Example of keypad operation Example 1 Modifying parameters ...
Page 74: ...4 8 4 1 5 Operation control ...
Page 206: ...4 140 Acceleration Deceleration calculation of mode 2 ...
Page 316: ...4 250 6 Timer mode 6 FLASH Timer mode 2 7 Timer mode 7 FLASH Timer mode 3 ...
Page 424: ...REVISIONS Date Manual Number Revision May 2017 4KA72X645T01 First edition ...
Page 425: ......