Instruction manual
1
20. 2 Port Adapter (ZM-1MD2) 1-49
Hardware Specifications
When connecting 2 units together
Caution
1. Since the power supply of ZM-1MD2 is supplied from CPU, pay attention to capacity of
5V power supply of CPU.
2. For wiring, it is fully careful to a noise.
3. There is the following restriction when ZM-1MD2 is used for QnA series CPU port.
1) When using it in ZM40/61 series, re-try time is 3 seconds.
The communication time out is 20 seconds between GPP and CPU.When any
communication error occurs between GPP and CPU, ZM-1MD2 maintains 20
seconds as communication time between GPP and CPU.
After passing 20 seconds, although a communication port is changed to ZM
between CPUs, since it is 3 seconds, the re-try time of ZM-40/60 series serves as a
time-out, and a communication error occurs.
Perform re-execution 20 seconds after.
2) When you use it in ZM-41/70/80 series, choose from the two following methods.
- With the [Detail Setting] menu of the [Communication Parameter] of a [System
Setup], [Communication error processing] is set as "Continuation."
- [Time-out time]x [re-try time] may become more than 20 seconds.There is the
following restriction when ZM-1MD2 is used for QnA series CPU port.
3) Write in running
When the write-in operation in running is performed from GPP side and the time
required is larger than 20 seconds, ZM-1MD2 cannot be used. In this case, written
in STOP state for PC.
In addition, although the number of steps of the program which can perform writing
among RUN in less than 20 seconds has a difference according to the contents of a
program, it is computable in the following formula as a standard.
A standard is asked in this formula. In addition, in the case of constant scan, this
formula cannot apply.
CPU
MITSUBISHI A Series PC
Q Series
POWER
RUN
SYSTEM
F 2
F 3
F 1
F 4
F 5
F 6
F 7
ZM Series
This ZM
becomes a
bit faster
POWER
RUN
SYSTEM
F 2
F 3
F 1
F 4
F 5
F 6
F 7
G
D
G
P
P
G
D
-M
DD
ZM Series
Connecting cable
(Mitsubishi made : optional)
Connect the
connector which is
found on the back
side directly to the
CPU port.
12
3
Slide switch
Use when select the conne-
ction model.
1: A series (ACPU port)
2: CnA series (QnA CPU port)
3: FX series
(Note) Change the slide switch
before power supply.
Time = (Number of steps 60) scan time (msec)