Mitsubishi Electric GOT1000 Series Handbook page 124

1. CONNECTION CONFIGURATION
When connecting to A0J2HCPU
GOT connection conditions
Mounting distance
Number of
between power
GOTs
supply module
connected
and first GOT
Programmable
controller
1m or
1
less
*1: The power supply module is required when a
GOT is connected.
*2: Indication of cable model
(Example) "GT15-J2C B 10: 1m" GT15-J2C10B
Precautions on bus connection
Setting stage No. and slot No. of GOT
1. GOT recognized by programmable controller
When a GOT is connected with bus connection, a programmable
controller recognizes the GOT as shown below.
QCPU (Q mode)
Intelligent function module with 16 I/O points
Other than QCPU (Q mode)
Intelligent function module with 32 I/O points
2. I/O assignment
(1) Connecting to QCPU (Q mode)
Add one stage for connecting a GOT (16 points 10 slots) and assign the
GOT to the I/O slots.(The GOT cannot be assigned to empty I/O slots on
the main base unit and extension base unit.)
Remarks I/O slots to which a GOT is not assigned can be set as empty
slots (0 point). The I/O numbers of 16 points the number of the empty
slots can be used for other devices.(Make settings in [PLC parameter]
and then [I/O assignment] of GX Developer.)
Reference 9. Connecting to QCPU (Q mode) in "Precautions"
(2) Connecting to other than QCPU (Q mode)
Assign a GOT to the empty I/O slot on the extension base unit.
(When there is no extension base unit or there is no empty slot on the
extension base unit, add a new extension stage and assign a GOT to the
I/O slot of the new stage.)(The GOT cannot be assigned to empty I/O
slots on the main base unit.)
Reference 10. Connecting to QnA(S)CPU type or An(S)CPU type in
"Precautions"
Precautions
1. Turning on GOT
(1) Designing system
The programmable controller CPU remains reset until a GOT is started.
A system where a GOT is started up by the sequence program cannot be
designed.
(2) Time taken for programmable controller to be started after power-on of GOT
After a GOT is turned on, it takes approximately 10 seconds for the
programmable controller to be started.
When adding a GOT to the existing system or replacing an existing GOT
with another GOT, take the programmable controller's start-up time into
account and adjust the timings in the system.
(3) Power-on order for case that three or more GOTs are connected to QCPU
(Q mode)
Reference 9. (1) Restrictions for total cable length to number of GOTs
connected
(4) Power-on order for case that GOT is connected to redundant Q4ARCPU
system
Reference 13. (2) Power-on order for case that GOT is connected to
redundant Q4ARCPU system
(5) Power-on order for case other than (3) and (4)
The GOT can be started up first and the programmable controller can also
be started up first.
(There is no specific order in which the both devices are turned on.)) Note,
however, that operation is as follows when the GOT is turned on before the
programmable controller:
When a GOT is turned on while the programmable controlled is off, a
system alarm (No.402: timeout error) occurs.When the programmable
controller is turned on, the GOT automatically restarts monitoring.
Reset the alarm with the system information.
2. When a GOT is turned off or restarted (turned off and
then on)
(1) Precautions for restarting (turning off and then on) a GOT
Do not restart (turn off and then on) a GOT while the programmable
controller is turned on.
Be sure to turn off the programmable controller before restarting (turning off
and then on) a GOT.
Remarks Operation that automatically reboots GOT1000 series
106
4.1 MITSUBISHI Programmable Controller
4.1.3 Details of bus connection
System configuration
Connection distance
0m
Power supply
module
Cable
0
Cable
Max. 1m
Max. 6m
*3: Use the GT15-ABUS(2) for mounting the following units. GT15-75ABUS(2)L is not available.
Units for the multimedia function, Video/RGB display, RGB output, printer output, Ethernet download,
gateway function, MES interface function, CF card unit, and CF card extension unit
For GT16, however, Ethernet download, gateway function, and MES interface function are available using the Ethernet interface.
*4: The bus connection unit is not required for GT115
1m
1
GOT
1
(dedicated to the bus connection).
In GOT1000 series, a GOT is automatically rebooted for the following
cases. It is not required to restart (turn off and on) the GOT.
When OS is installed with GT Designer2 or the CF card
When the utility settings are changed
(2) When a GOT is turned off before a user-created screen is displayed on the
GOT
Communication may not be made when a GOT is turned off before a user-
created screen is displayed on the GOT. In the above case, turn on a
programmable controller and the GOT again.
(3) Power-on order for case that three or more GOTs are connected to QCPU
(Q mode)
Reference 9. (1) Restrictions for total cable length to number of GOTs
connected
3. Reset switch of GOT
The reset switch of the GOT does not operate with the bus connection.
4. When a programmable controller is turned off or reset
(1) When a programmable controller is turned off or reset during monitoring
When a programmable controller is turned off or reset during monitoring, a
system alarm (No.402: timeout error) occurs.When the programmable
controller is restored, a GOT automatically restarts monitoring. Reset the
alarm with the system information.
(2) When a programmable controller is turned off or reset before a user-
created screen is displayed on the GOT
Communication may not be made when a programmable controller is turned
off or reset before a user-created screen is displayed on the GOT. In the
above case, turn on a programmable controller and the GOT again.
(3) Power-on order for case that three or more GOTs are connected to QCPU
(Q mode)
Reference 9. (1) Restrictions for total cable length to number of GOTs
connected
5. Connecting location of GOT
A GOT must be connected to the base unit at the last stage of the system.
The GOT cannot be connected between the base units.
6. When a GOT is connected to a programmable controller
CPU with bus connection without the communication
driver installed
When a GOT is connected to a programmable controller CPU with the bus
connection without the standard monitor OS and the communication driver
for bus connection installed, the programmable controller CPU is reset.(The
GOT cannot communicate to the programmable controller with GX
Developer or other software.) In the above case, reset of the programmable
controller is canceled when the bus connection cable of the GOT is
removed.
7. Designing system
The current listed below is supplied from a programmable controller (the
power supply module of the main base unit) to a GOT when the GOT is
turned off. (The GOT is not activated when the GOT is turned off.) The rated
output current of a power supply module to be used at 5VDC includes the
currents consumed by a module mounted on the main base unit at 5VDC
and consumed by a GOT. Design a system to keep the total of the currents
below the rated output current.
Target CPU
Number of GOTs connected Total current consumption
5
4
Connecting to QCPU
3
(Q mode)
2
1
3
Connecting to CPU other
2
than QCPU (Q mode)
1
8. When the I/O signals of a GOT are assigned
The I/O signals assigned to a programmable controller are used on a GOT system.
Do not use the I/O signals in a sequence program.
Otherwise, functions of the GOT cannot be guaranteed.
1 1
2200mA
1760mA
1320mA
880mA
440mA
360mA
240mA
120mA