Yaskawa MEMOCON GL120 - Manual (Page 173)

4.4 Communications Modules
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g) The connector for the MEMOBUS port is a D-sub connector (9-pin, female). The con-
nector pin arrangement and signal names are shown in the following table:
Table 4.48 Pin Arrangement and the Signal Names of MEMOBUS Port
Pin No. Symbol Signal Name
1 FG Protective ground
2 TXD Transmission data
3 RXD Reception data
4 RTS Request to send
5 CTS Clear to send
6 DSR Data set ready
7 GND Signal ground
8 − Not used
9 DTR Data terminal ready
h) COM Instructions (COMM, COMR)
Note (1) The COMR instruction can be used only for the MEMOBUS port of the Remote I/O Re-
ceiver Module.
(2) The COMM instruction cannot be used for the MEMOBUS port of the Remote I/O Re-
ceiver Module. The COMM instruction can be used for the MEMOBUS port of the fol-
lowing two communications Modules:
MEMOBUS Module (RS-232): Model JAMSC-120NOM26100
MEMOBUS Module (RS-422): Model JAMSC-120NOM27100
5) DIP Switch
a) The DIP switch is composed of 6 pins. The pins are num-
bered from 1 to 6 as shown in the diagram.
b) Each pin is turned ON when pressed it to the right.
c) Each pin becomes effective at the following times.
(1) Pins 2 to 4: When the pin setting is changed.
(2) Pin 1, pin 5, and pin 6: When the reset switch is pressed, or when power is turned
ON to the Power Supply Module of Rack 1 (Receiver Rack).
4
123456
1
6
SW
ON