R7M-DAC16C
EM-7803-AK Rev.4 P. 5 / 8
COMMUNICATION CABLE CONNECTIONS
■
MASTER CONNECTION
Tx+/Rx+
Tx–/Rx–
SG
Rx+
Rx–
Host PC
DA
DB
DG
SLD
FG
Remote Unit
DA
DB
DG
SLD
FG
Remote Unit
TERMINATOR
TERMINATOR
Be sure to connect the terminating resistor included in the product package to the unit at both ends of transmission line.
The terminator must be connected across DA and DB.
The Host PC can be located other than at the extreme ends of transmission line.
EXAMPLE OF OPERATION MODES
■
MAINTAINED OUTPUT MODE
Example of Y0 is shown below.
Bit 0
OFF
OFF
OFF
OFF
ON
ON
Y0
■
MOMENTARY OUTPUT MODE
Y0 and Y1, Y2 and Y3, Y4 and Y5, Y6 and Y7 are respectively combined to realize momentary switching with one-shot output.
Bit 0, 2, 4, 6 are used to control each set of outputs, while Bit 1, 3, 5, 7 are unused.
An example of Bit 0 controlling Y0 and Y1 outputs sequentially is shown below.
1) Output data Bit 0 is turned from 0 to 1.
2) Following the rising edge of Bit 0, Y0 one-shot output turns ON for a fixed period of time (SW1 time setting).
3) Bit 0 is turned from 1 to 0.
4) Following the sinking edge of Bit 0, Y1 one-shot output turns ON for a fixed period of time (SW1 time setting).
Bit 0
Y0
Y1
(1)
(2) One-shot output
(3)
(4) One-shot output
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
Note: If Bit 0 receives multiple data during the one-shot output time period, the Y0 provides only the last output data received
within approx. 25 milliseconds after the period.
056 222 38 18
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SENTRONIC
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