Programming Design; Message Format - Sanken SVCO6 Instruction Manual

7-4 Serial Communication Function
Note: If command A is received, the inverter issuing command Z will stop automatic alarm transmission. Command Z
cannot be issued again even if the cause of the alarm has not yet been solved (for example, the fin temperature is too
high and the overheat protection function has been activated) or the alarm status has not been reset.
7-4-5

Programming Design

(1) Message Format

● Messages have the following two formats:
① ASCII format: consisting of character codes only
② BINARY format: consisting of an inverter number and data in hexadecimal. Since message of this format is
shorter than the ASCII-format message, the communication time for one message is shorter. This format is
available only for the frequency setting (O), forward run (P), reverse run (Q), stop (R) and alarm reset (S)
commands.
If the message checksum function is disabled (F4001=0), ―SUM‖ is not necessary for messages in ASCII or
BINARY format.
1) Message from computer to inverter (ASCII format)
Fixed length Variable length
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