Yaskawa MP2000 Series - Manual (Page 39)

Page 39
MP2000.02, 1/18/2011
Data subject to change without notice
Yaskawa America, Inc.
Appendix 1. ACGC Replacement Proposal
In conventional systems where ACGC + a dedicated PCLINK port is used, it was possible to perform link data
read/write and MEMOBUS message transmission directly from the ACGC. In order to achieve this, a proposal where
an MP controller + a display device made by another company (such as GP manufactured by Digital Device
Corporation) is possible. The MP controller becomes a link data collection device, placed between the display device
and the PCLINK network, and the link data is accumulated in a holding register that can be referenced from the outside.
By performing holding register reading and writing to the MP controller from the display device via Ethernet, input and
output of the link data on the PCLINK transmission path are performed. The MP controller needs only a message
reception function performing Ethernet communication and a simple program performing transfer between the I/O
registers.
In addition, with regard to MEMOBUS messaging, the MEMOBUS commands sent from the monitoring device can
be directly sent to other stations on the PCLINK network according to the counterpart MEMOBUS format station
number by directly connecting to the serial port of the PCLINK-01 module from the display device. At this time, no MP
controller program is required.
Conventional
Proposal
PCLINK Network
PCLINK Port
Link Data
Read Write
ÁÂÃÄÅÅ
ÆÇÈÉÇ
ÃÄÃÆ
 !"Á È#$ %É#&"'!"ÇÉ("ÆÇ) È!
01Â"'!"2É "3%"ÆÇ45"É%46
PC-LINK Module
7É(ÈÉ"ÁÇ&#
ÂÆ89@A"@ÉBÇC
ÁÂÃÄ ÅÆÇÈÂ
  
7É(ÈÉ
Communicates the link data
at high speed by MP
controller holding register
read/write.
ÁÂÃÄÅÆÇÂÈÉÅÈÇÂÆÂÇÈÆÂÈÈ
ÇÈÃÇÂÈÉÄÈÇÈ È!ÄÂÇÂÈ
ÆÂÈÉÄ"ÈÂÇ"ÉÅÇÂÈ È#$$È
%Ç"ÉÅÇÂ&È'Ä$È%Ç"ÉÅÇÂÈ ÈÈ
(ÉÄ"È%Ç"ÉÅÇÂ&È$ÃÉÄ"ÈÇÈ
ÉÄ)ÈÃÃÈÄÈÇÈ 0ÈÄÇ1Â)
Connect the serial cable directly to
the serial port of the PC-LINK
module, and send the
MEMOBUS messages directly.
ACGC
MEMOBUS Message