User`s manual

Graphic Operation Terminal F930GOT Introduction 1
1-20
When the GOT is connected to the MELSEC A Series PLC via a computer link unit, the follow-
ing setting is required.
• Setting of computer link unit
Set the communication format of the computer link unit as shown below.
• Caution: When RS-232C is connected
The GOT does not control CD signals. Accordingly, when the RS-232C is connected, the
buffer memory in the computer link unit should be set so that CD signals are not checked.
Example: When I/O signals in the computer link unit are 80 (H) to 9F (H)
• Restriction in functions
In connection via computer link unit, the following functions of the GOT are disabled.
- Index registers (V and Z) cannot be monitored, and their current values cannot be
changed.
- When the RS-232C is connected for communication, the printer output function of the
GOT is disabled.
- The two-port interface function is disabled.
Table 1.4:
Used port When RS-422 is used When RS-232C is used
Mode setting switch No.
5
RS-422: Format 1
RS-232C: No-procedure
1
RS-422: No-procedure
RS-232C: Format 1
Transmission speed 19200 bps
Data bit 7 bits
Stop bit 1 bit
Parity bit Even
Sum check Provided
Write during run Possible
Station No. 00 to 0F (in accordance with setting in GOT)
↑
The GOT station No. can be set in "SET-UP MODE". (Refer to Paragraph 2.2.)
X87
P
TO
H8 H10B K1 K1
Write to buffer memory
Computer link unit connection point
10B (H): CD terminal will be checked.
K1: CD terminal will not be checked.