Specifications

[Issue No.] GOT-A-0018-G [Page] 8/27
[Title] Precautions when Replacing GOTA800, A77GOT, A64GOT Series with GOT1000 Series
[Date of Issue] Ver.G: September 2011 (First Edition: September 2005)
[Relevant Models] GOT800, A77GOT, and A64GOT Series
HEAD OFFICE : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
NAGOYA WORKS : 1-14, YADA-MINAMI 5-CHOME, HIGASHI-KU, NAGOYA, JAPAN
TECHNICAL BULLETIN
Example of accessing the network via the programmable controller by changing the connection type of the
GOT
MELSECNET(Ⅱ)coaxial loop
or MELSECNET(Ⅱ)optical loop
or MELSECNET/B
Communication formats other than
MELSECNET(Ⅱ), /B, /10
Figure 3-1 Example of replacement configuration when adding a communication module to the
programmable controller with an empty slot and connecting the programmable controller to the
GOT
The following two restrictions are applied for the replacement.
a) Station number settings need to be changed depending on the station that the GOT is connected to.
- When connecting to the master station, change all station numbers of objects to the host station (0-FF).
- When connecting to local stations, station numbers do not need to be changed.
b) When using the cyclic device with host station write, the write area of the GOT is unable to use. Therefore,
changing the write device and corresponding ladder is required.
Table 3-4 Communication format between a programmable controller and a replacement GOT, a
representative communication unit model and a connected programmable controller
Replacement communication format Representative GOT communication unit model Connected programmable controller
A bus connection GT15-ABUS, GT15-75ABUSL
AnS series
QnA(S) series
RS-232 connection RS-232 port of GOT,GT15-RS2-9P
Q series
AnS series
QnA(S) series
RS-422 connection GT15-RS4-9S,GT15-RS2T4-9P
Q series
AnS series
QnA(S) series
(2) When the existing programmable controller has no empty slot
Add a programmable controller to the network. Add a communication module (for other than the
MELSECNET(Ⅱ), MELSECNET/B, and MELSECNET/10 network systems) to the programmable controller,
and change the connection type between the programmable controller and the GOT.