Yaskawa MP2000 Series - Manual (Page 31)

Page 31
MP2000.02, 1/18/2011
Data subject to change without notice
Yaskawa America, Inc.
In addition, connection of a MEMOBUS master device to the serial port of the MP2000 series PCLINK-01 module
and MEMOBUS message communication via the PCLINK network are possible. The PCLINK–01 reception side has a
MEMOBUS message reception function. (When a MEMOBUS message is received via the serial port, CH5 is used by
the MSG-RCV function.) The controller on the transmission side does not need a ladder protocol. The MEMOBUS
messages received from the serial port will be automatically determined to be either received by the local CPU module
or transmitted on the PCLINK network according to the station address of the MEMOBUS protocol.
Figure 4.4 MEMOBUS Messaging Between the Controllers via the PCLINK Serial Port
* In cases of a GL40, 60, 70 and GL120/130 side message slave, the message reception function can be omitted.
The MEMOBUS protocol capable of being used in PCLINK transmission is as follows.
Function Code Meaning Data Address Setting
Range
Data Size MEMOBUS
01H Coil Status Readout 0 ~ 65535 1~2000 (No. of bits)
02H Input Relay Status Readout 0 ~ 65535 1~2000 (No. of bits)
03H Holding Register Content Readout 0 ~ 65534 1~125 (No. of words)
04H Input Register Content Readout 0 ~ 32767 1~125 (No. of words)
05H Single Coil Status Change 0 ~ 65535 Disabled
06H Write to Single Holding Register 0 ~ 65534 Disabled
08H Loopback Test Disabled Disabled
0FH Multiple Coil Status Change 0 ~ 65534 1~800 (No. of bits)
10H Write to Multiple Holding Registers 0 ~ 65534 1~100 (No. of words)
In PCLINK transmission, the transmission target can be designated by the group number in addition to the station
number in the message transmission target. In group number designation, it is possible to multicast messages to
stations with the same group number. However, the available messages are limited to the write series.
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The MEMOBUS protocol address
settings are transferred to the local
CPU if other than the PCLINK
station number address of the local
station
The MEMOBUS protocol address
settings are streamed on the PCLINK
network if other than the PCLINK
station number address of the local
station