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Environment-resistive Terminals (IP66) Section 5-3
Node address setting: Rotary switches
Baud rate setting: DIP switch pins 1 and 2
Note The DRT1-@D@@C(-1) Terminals do not have an “output hold/clear setting”
for communications errors. When a communications error occurs with a Ter-
minal that has outputs, the corresponding output data from the Master is
cleared to 0 (OFF).
Node Address Settings Each Environment-resistive Terminal’s node address is set in two-digit deci-
mal with the rotary switches. The 10’s digit is set on the left rotary switch and
the 1’s digit is set on right rotary switch.
Any node address within the allowed setting range can be used as long as it
isn’t already set on another node.
Note The Environment-resistive Terminal won’t be able to participate in communi-
cations if the same node address is used for the Master or another Slave
node (node address duplication error).
Baud Rate Setting DIP switch pins 1 and 2 are used to set the baud rate as shown in the follow-
ing table. (These pins are factory-set to OFF.)
Note 1. Always turn OFF the Slave’s power supply (including the communications
power supply) before changing the baud rate setting.
2. Set the same baud rate on all of the nodes (Master and Slaves) in the Net-
work. Any Slaves with baud rates different from the Master’s rate won’t be
able to participate in communications. Furthermore, a node with an incor-
rect baud rate setting may cause communications errors between nodes
with correct baud rate settings.
5-3-2 Environment-resistive Terminal (IP66) with 8 Transistor Inputs:
DRT1-ID08C (NPN)
Input Specifications
21
5
0
1
2
3
46
7
8
9
5
0
1
2
3
46
7
8
9
O
N
Baud rate setting Node address setting
Pin settings Baud rate
Pin 1 Pin 2
OFF OFF 125 kbps (default)
ON OFF 250 kbps
OFF ON 500 kbps
ON ON Not allowed.
Item Specification
Model DRT1-ID08C
Internal I/O common NPN
Input points 8 points (Uses one word in Master.)
ON voltage 15 V DC min. (between each input terminal and V)
OFF voltage 5 V DC max. (between each input terminal and V)
OFF current 1 mA max.
Input current 6 mA max./point at 24 V DC
(between each input terminal and V)