MPH-02, MPB-02, MPD-02
Handling, Diagnostic and Service Functions
10-75
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
Interface Mode
The serial interface can optionally be operated in the
•
RS232 mode or
•
RS485
mode.
Note:
Communication via RS485 is only possible in conjunction with
an external RS232/485 converter.
Depending on the mode, it is necessary to use different cables
(see Project Planning Manual).
Transmission Protocols
Two different protocols are supported on the drive side:
•
ASCII
protocol
•
SIS
protocol
When switching on the 24 V supply voltage an automatic protocol
detection is activated when receiving signals via the serial interface.
A soon as either
•
a valid ASCII start sequence
or
•
a valid SIS telegram
was received the drive internally switches to the respective kind of
protocol.
•
transmission rates of 9600 and 19200 baud
•
8-bit ASCII protocol
•
no parity bit
•
one stop bit
Note:
There isn’t any telegram frame used but the transmitted ASCII
signs are converted and interpreted. It is only necessary to
comply with a certain order.
•
binary
protocol
•
checksum test (higher Hamming distance D)
•
all telegrams are identified by an unequivocal start character ("0x02")
•
defined structure of the telegram frame
•
it is possible to activate motions (e.g. jogging)
Properties of ASCII Protocol
Properties of SIS Protocol
Courtesy
of
CMA/Flodyne/Hydradyne
▪
Motion
Control
▪
Hydraulic
▪
Pneumatic
▪
Electrical
▪
Mechanical
▪
(800)
426-5480
▪
www.cmafh.com