Advertisement
The PCL-818L provides 16 digital input channels and 16 digital
output channels. You read digital input data from registers BASE+3
and BASE+11. After the read operation the input lines go to three-
state (data is not latched).
You write digital output data to registers BASE+3 and BASE+11. The
registers latch the output value (you can read it back).
Data format for each register appears below:
Bit
Value
Bit
Value
Bit
Value
Bit
Value
Using the PCL-818L's input and output functions is fairly straightfor-
ward. Chapter 3 gives some ideas for digital signal connections.
48
PCL-818L User's Manual
D7
D6
D5
DI7
DI6
DI5
D7
D6
D5
DO7
DO6
DO5
D7
D6
D5
DI15
DI14
DI13
D7
D6
D5
DO15
DO14
DO13
D4
D3
D2
DI4
DI3
DI2
D4
D3
D2
DO4
DO3
DO2
D4
D3
D2
DI12
DI11
DI10
D4
D3
D2
DO12
DO11
DO10
D1
D0
DI1
DI0
D1
D0
DO1
DO0
D1
D0
DI9
DI8
D1
D0
DO9
DO8
Advertisement
