Contrex ML-Drive Manual de usuario descargar pdf (Pagina 92)

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Control Command Send

The Control Command Send allows the host computer to control the operating

functions of the ML-Drive that are associated with the digital inputs (Run, Stop,

Setpoint Select and Master/Follower).

Table 3-31 Control Command Send - Host Transmission

Character # 1 2 3 4 5 6 7 8 9 10 11 12

DEV # DEV # MSG PAR # PAR # DATA DATA DATA DATA DATA

DESC STX 10s 1s TYPE 10s 1s 1000s 100s 10s 1s FORM ETX

ASCII STX 0-9 0-9 1 0 0 0 0 0-1 0-9 0 ETX

The following is a description of the Control Command Send - Host Transmission.

Character 1 - STX:

This is the first character in the character string. None of the other characters will

be recognized without this character prefix. Always use the ASCII “STX” character;

it enables the ML-Drives receive buffer.

Characters 2, 3 - Device #:

These characters are the access address of the ML-Drive. This number identifies

individual ML-Drives on a mutltidrop system. The ML-Drive will accept data only if

this number matches the ML-Drive's address (CP-70), with the exception of a “00”

address. The “00” address is universally accepted by all ML-Drives that are on the

RS485 Serial Communications Interface.

Character 4 - Message Type:

This character should always be “1”.

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Contrex ML-Drive Manual de usuario Pagina 92