Yaskawa MEMOCON GL120 - Manual (Page 133)

4.3 CPU Modules
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(2) Setting Pins 1 to 3
Set DIP switch pins 1 to 3 of the CPU20 of node 2 as shown in the
diagram at the right. Turning ON pin 3 sets the CPU20 of node 2 to
bridge mode. Turn ON pin 1 and turning OFF pin 2 sets the com-
munications parameters between personal computer and the
MEMOBUS port to the following settings:
Communications mode: RTU mode
Communications parameters:
Baud rate: 9,600 bps
Parity check: Yes
Parity: Even
Stop bits: 1
Data bit length: 8
Delay time:
0 ms
(3) The communications parameters of the RS-232C interface the personal comput-
er must match the above values (except the delay time).
(4) A personal computer can run high-speed communications, via the CPU20 of
node 2, with any CPU Module (including the CPU20 of node 2) on the MEMOBUS
PLUS network.
7) Setting Pin 5
Pin 5 is used to determine the start mode of the CPU Module. See the following table to
set this according for your system.
Table 4.24 Setting the Start Mode
Setting Function
ON 1) Sets the start mode of the CPU Module to automatic RUN operation.
2) In this mode, the CPU Module will start in RUN mode when power is turned ON
to the CPU Rack.
OFF 1) Sets the start mode of the CPU Module to normal operation.
2) In this mode, the CPU Module will start in the mode it was in just before the
power supply was cut off (i.e., either RUN or STOP mode).
Note The setting of pin 5 is effective (read) only when the power is turned ON to the Power Supply
Module of the CPU Rack.
6. Rotary Switches
1) The rotary switches are used to set the node address of the MEMOBUS PLUS port.
2) There are two rotary switches. The upper switch is rotary switch 1 and the lower switch is
rotary switch 2. Each switch has positions numbered from 0 to 9.
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