This manual confers no industrial property rights or any rights of any other kind,
nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be
held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
Warranty
Mitsubishi will not be held liable for damage caused by factors found not to be
the cause of Mitsubishi; opportunity loss or lost profits caused by faults in the
Mitsubishi products; damage, secondary damage, accident compensation
caused by special factors unpredictable by Mitsubishi; damages to products
other than Mitsubishi products; and to other duties.
For safe use
This product has been manufactured as a general-purpose part for general
industries, and has not been designed or manufactured to be incorporated in
a device or system used in purposes related to human life.
Before using the product for special purposes such as nuclear power, electric
power, aerospace, medicine or passenger movement vehicles, consult with
Mitsubishi Electric.
This product has been manufactured under strict quality control. However
when installing the product where major accidents or losses could occur if the
product fails, install appropriate backup or failsafe functions in the system.
•
•
•
HEAD OFFICE
HIMEJI WORKS
: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310,
JAPAN
: 840, CHIYODA CHO, HIMEJI, JAPAN
3. Specifications
3.1 General Specifications
*1 Cannot be used under pressures higher than the atmospheric pressure. Failure to observe this instruction may cause the unit to fail.
3.2 Communication Specifications
3.3 Power Supply Specifications
Item
Specifications
Operating ambient
temperature
0 to 55
°
C
Storage ambient
temperature
-20 to 60
°
C
Operating/Storage
ambient humidity
10 to 90% RH, non-condensing (The wet bulb temperature is 39
°
C or less.)
Vibration resistance
C o n f o r m s t o J I S
C60068-2-6
Frequency
Acceleration
Half-amplitude
Sweep Count
Installed with DIN
rail
10 to 57Hz
–
0.035mm
10 times each in X, Y and Z
directions
(Total 80 minutes for each)
57 to 150Hz
4.9m/s
2
–
Directly installed
10 to 57Hz
–
0.075mm
57 to 150Hz
9.8m/s
2
–
Shock resistance
Conforms to JIS C60068-2-27 (147 m/s
2
, 11 ms, Sine half-wave pulse, 3 times each in the X, Y, and Z directions)
Operating atmosphere
Must be free of lamp black, corrosive gas, flammable gas, or excessive amounts of electro conductive dust particles and must not be placed in
direct sunlight. (This applies for storage as well)
Operating altitude
2000m (6562 ft) max.
*1
Cooling method
Self-cooling
External dimensions
(D
×
W
×
H)
90
×
65
×
90mm
Weight
Approx. 0.3kg
Installation method
Using DIN rail or fixed with screws
Exterior color (Case)
Standard color of Mitsubishi Electric (Black: corresponding to N-0230-BG)
Standard
Conforms to CE
Item
I/F1 (RS-422)
I/F2 (RS-232)
I/F3 (RS-485)
I/F4 (USB)
C o n n e c t i o n
configuration
1:1
1:N
1:1
Transmiss
i o n
standard
Transmissi
on method
RS-422 1ch
RS-232 1ch
RS-485 1ch
USB device 1ch
Transmissi
on speed
115, 200/57, 600/38, 400/19, 200/9, 600/4, 800 bps
Full Speed 12Mbps
Insulation
method
Photocoupler insulation
--
Connector
D-sub 9-pin (female)
D-sub 9-pin (male)
Terminal block (attach/detach
type)
Mini-B
Transmission distance
30m or less
3m or less
500m (max.) (maximum overall
extension length of the system)
--
Number of GOTs that
can be connected
1
16 (max.)
1
Communication method
Full duplex
Half duplex and full duplex
(Can be selected depending on
the wiring)
--
Application
For PLC connection
(Cannot be used simultaneously
with I/F2)
For PLC connection
(Cannot be used simultaneously
with I/F1)
For multi-drop connection
PC communication
(OS installation)
Item
Specifications
Input power supply voltage
24VDC (+10%, -15%)
Fuse (built-in, not exchangeable)
1A
Power consumption
3.36W or less (140mA/24VDC)
Inrush current
14A or less (24VDC, 2ms)
Dielectric withstand voltage
500VAC for 1 minute (across power supply terminals and earth)
Insulation resistance
10M
Ω
or larger by insulation resistance tester (across power supply terminals and earth)
Grounding
Class D grounding (100
Ω
or less), To be connected to the panel when grounding is not possible
3.4 LED Light Specifications
*1 For details of corrective actions, refer to Chapter 7 Troubleshooting.
4. External Dimensions and Part name
LED Name
Status
Description
POWER
Lit
Power is properly supplied.
Not lit
Power is not properly supplied.
SD
Lit
Sending the data to PLC
Not lit
Not sending the data to PLC
RD
Lit
Receiving the data from PLC
Not lit
Not receiving the data from PLC
ERROR
*1
Not lit
No error
Lit in red
Communication error with PLC
Blinking in red
Multi-drop communication error
No
Name
Specifications
1)
Installation hole for the main unit
Installation hole
2)
LED
POWER
Lit in green when the power is properly supplied.
SD
Lit in green when the data is being sent to PLC.
RD
Lit in green when the data is being received from PLC.
ERROR
Lit or blinking depending on the status.
3)
Terminating resistor selector
Can be selected among 110
Ω
, OPEN and 330
Ω
(set to "OPEN" by default)
4)
Connector for PLC communication (for RS-232 connection)
D-sub 9-pin (male)
5)
Connector selection switch for PLC communication
Switch for selecting RS-422 or RS-232 (set to "RS-422" by default)
6)
USB port
For connecting to a personal computer (for changing the communication driver)
7)
Connector for PLC communication (for RS-422 connection)
D-sub 9-pin (female)
8)
Protective cover
Protect unused D-sub connector, USB port and switches.
9)
Terminal block for the serial multi-drop communication
Terminal block 5-pin (with a protective cover) M3 Tightening torque 0.5 to 0.6N.m
10)
Power supply connector
24VDC power supply connector insertion point (A dedicated cable is included.)
11)
Slider for installing the DIN rail
–
12)
Mode selection switch (Slide switch)
Do not operate. (Set to right by default. When set to left, the module does not operate normally.)
57
72
1)
2)
10)
12)
11)
4)
3)
7)
8)
5)
6)
9)
80
• Protective cover is installed
• Protective cover is removed
65
2-
φ
4.5
90
5. Installation
5.1 Installed with DIN Rail
Install the multi-drop connection module with its hook (1 place) using the DIN rail.
•
Applicable DIN rail DIN46277 (width: 35mm)
(Install the DIN rail with screws at intervals of 150mm.)
5.2 Directly Installed to Panel
Install the multi-drop connection module to the panel using
φ
4.5mm holes (2 places).
5.3 Caution for compliance with EMC Directive
Programmable logic controllers are open-type devices that must be installed and used within conductive control boxes. Please use the Multi-Drop Connection Unit while
installed in conductive shielded control boxes. Please secure the control box lid to the control box (for conduction). Installation within a control box greatly affects the safety of
the system and aids in shielding noise from the Multi-Drop Connection Unit.
6. Wiring
6.1 Power Supply Wiring
Connect the power supply cable with connectors (included) and the 24VDC terminal of the external power supply.
6.2 Wiring and Terminating Resistor Setting
6.2.1
For 1 pair wiring
Make sure to ground a twisted pair cable by applying Class D Grounding (100
Ω
or less).
*1 The terminating resistor 110
Ω
is built in the multi-drop connection module and GOT (GT10,GT11).
Make sure to set the terminating resistor to both ends of the line.
For GT15 or GT16, external wiring is required. Set the terminating resistor of the GOT that is not at the end of the line to "OPEN".
Black-
Green Ground
Red+
GOT side
GOT side
GOT side
PLC
Class D
Grounding
Terminating
resistor
110
Ω
Class D
Grounding
*1
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
Signal name
SDA
SDB
RDA
RDB
SG
Multi-drop
connection module
Signal
name
Signal
name
Signal
name
Class D
Grounding
Terminating
resistor
110
Ω
*1
Cable for GT11
6.2.2
For 2 pair wiring
Make sure to ground a twisted pair cable by applying Class D Grounding (100
Ω
or less).
*1 The terminating resistor 330
Ω
is built in the multi-drop connection module and GOT (GT10,GT11).
Make sure to set the terminating resistor to both ends of the line.
For GT15 or GT16, external wiring is required. Set the terminating resistor of the GOT that is not at the end of the line to "OPEN".
7. Troubleshooting
In the case where ERROR LED is lit or blinking, check the following items.
Status of ERROR LED
Description
Lit in red
Check the following items.
•
Check if the power supply status is normal or not.
•
Check the wiring of the connection cable.
•
Install the correct communication driver.
•
Check if the communication interface to which the cable is connected is correct or not.
•
Check the setting of the RS-422/RS-232 selector switch.
Blinking in red
Check the following items.
•
Check that the Mode selection switch is set to the right.
•
The OS may be faulty. Install the standard OS and communication driver from GT Designer2 or GT Designer3 to the multi-drop
module again.
Cable for GT11
Class D
Grounding
Class D
Grounding
Class D
Grounding
PLC
Multi-drop
connection module
Signal name
SDA
SDB
RDA
RDB
SG
GOT side
Signal
name
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
GOT side
Signal
name
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
GOT side
Signal
name
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
Terminating
resistor
330
Ω
*1
Terminating
resistor
330
Ω
*1
Terminating
resistor
330
Ω
*1
Terminating
resistor
330
Ω
*1
