Connection Of Melsec A Series (Link Port) - Mitsubishi F940GOT-SWD-E Operation Manual

Graphic Operation Terminal F940GOT
1.6.3

Connection of MELSEC A Series (LINK PORT)

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.
Used port
Mode setting
switch No.
Transmission
speed
Data bit
Stop bit
Parity bit
Sum check
Write during run
Station No.
*1 For wiring to the PLC, refer to the hardware manual supplied together with the F940GOT.
*2 The GOT station No. can be set in "SET-UP MODE" (Refer to Paragraph 2.2.).
• 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)
X87
• Restriction of functions
When a computer link unit is connected, the following functions are disabled in the GOT.
- Index registers (V and Z) cannot be monitored, and their current values cannot be
changed.
- When the RS-232C is connected, the printer output function of the GOT is disabled.
When RS-422 is used
5
RS-422: Format 1
RS-232C: No-procedure *1
00 to 0F (in accordance with setting in GOT) *2
Write to buffer memory
Computer link unit connection point
TO H8 H10B K1
P
10B (H): CD terminal will be checked.
When RS-232C is used
1
RS-422: No-procedure
RS-232C: Format 1 *1
19200bps
7 bits
1 bit
Even
Provided
Possible
K1
K1: CD terminal will not be checked.
Introduction 1
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