88
Transistor Remote I/O Terminals with Connectors Section 4-5
Baud Rate Setting Pins 1 and 2 are used to set the baud rate as shown in the following 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 may cause communications errors between nodes with cor-
rect baud rate settings.
Setting Pins 3 and 4 The functions of pins 3 and 4 differ for inputs and outputs, as shown in the fol-
lowing diagram.
Pin 3: Reserved (Always OFF)
Pin 4: As follows:
Inputs: No function (Always OFF)
Outputs: Hold/Clear outputs for communications error
OFF (Clear): All output data from the Master will be cleared to 0 when a
communications error occurs.
ON (Hold): All output data from the Master will be retained when a
communications error occurs.
Pins 3 and 4 are factory-set to OFF.
4-5-2 Transistor Remote Input Terminals with 32 Points and
Connectors: DRT1-ID32ML (NPN) and DRT1-ID32ML-1 (PNP)
Input Specifications
Pin 1 Pin 2 Baud rate
OFF OFF 125 kbps (default)
ON OFF 250 kbps
OFF ON 500 kbps
ON ON Not allowed.
43
ON
Input: Not used (Always OFF)
Output: Hold/Clear outputs for communications error
Reserved: Always OFF
Item Specification
Model DRT1-ID32ML DRT1-ID32ML-1
Internal I/O common NPN PNP
Input points 32 points
ON voltage 15 V DC min. (between
each input terminal and V)
15 V DC min. (between
each input terminal and G)
OFF voltage 5 V DC max. (between
each input terminal and V)
5 V DC max. (between
each input terminal and G)
OFF current 1.0 mA max.
Input current 6.0 mA max./point at 24 V DC
3.0 mA min./point at 17 V DC
Input impedance 4.4 kΩ
ON delay time 1.5 ms max.
OFF delay time 1.5 ms max.
To Next Page
Loading...
