74
Transistor Remote I/O Terminals with 3-tier I/O Terminal Blocks Section 4-4
Components of the DRT1-OD16TA and DRT1-OD16TA-1
Internal Circuits The following diagram shows the internal circuits for the DRT1-OD16TA
Remote Output Terminal.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
OUT
DeviceNet Indicators
DIP switch
DIN track mounting hooks
Communications
connector
Output indicators
Indicate the output status of each contact.
(Lit when the output is ON.)
Terminal block
Pins 1 and 2: Baud rate setting
Pin 3: Reserved (Always OFF.)
Pin 4: Hold/Clear outputs for communications error
DRT1-OD16TA
REMOTE TERMINAL DC24V
NS
MS
DR0
ON
DR1 HOLDNC
(Refer to page 312.)
(Refer to page 62.)
Rotary switches (Refer to page 62.)
Set the node address.
Circuit removal screws.
V−
CANL
Physi-
cal
layer
Photo-
coupler
Photo-
coupler
Photocoupler
DRAIN
CANH
V+
V2 24 V DC
G2
V2
Output (8 to 15)
G2
Photocoupler
V1 24 V DC
G1
V1
Output (0 to 7)
G1
Internal
circuitry
DC-DC
converter
(Isolated)
Voltage
step-down
Voltage
step-down
I/O power
supply
I/O power
supply