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Toshiba
8-3. Digital Input / Output Relay Interface (BMS-IFDD03E)
The following settings are necessary to use Digital Input / Output Relay Interfaces.
Address setting
SW1 Address set switch
When two or more Digital Input / Output Relay Interfaces are used, set a different address for each unit
to avoid address duplication.
RS-485 terminator resistor
setting
Set SW7 as “120 ohm” on a Digital Input / Output Relay Interface with address SW1=1, when the Digital
Input / Output Relay Interface is used in a system without Energy Monitoring Relay Interface. Set SW7
as “Open” on the other interfaces.
SW1
Address set switch
1-8
Address
0, 9-F
Not used
SW2
Operating mode set switch (0 usually)
SW3
Test switch (all OFF usually)
SW4
Test switch
SW6
Reset switch
SW7
RS-485 terminator resistor select switch
120 ohm
Open
LED1
Power indicator
LED2
RS-485 communication status indicator
LED3
Not used
LED4
Test indicator
LED5
Test indicator
LED6 -LED9
Digital output indicator
ON
ON
L
N
BA
S
G
RS-485
DI
1
DI
6
DI
2
DI
4
DI
3
DI
7
DI
8
DI
5
1 2 3 4
LED1
LED2
LED3
LED4
LED5
SW1
SW2
SW3
SW4
SW6
SW7
12V
GND
DO1
DO2
DO3
DO4
LED6
LED7
LED8
LED9
+ -
+ -
+ -
+ -
+ -
+ -
+ -
+ -
+00A10-026_01EN.book Page 25 Monday, February 14, 2011 2:46 PM