SERIES AP48X ACROPACK
USER
’S MANUAL
Acromag, Inc. Tel: 248-295-0310
- 53 -
http://www.acromag.com
- 53 -
https://www.acromag.com
corresponding toggle counter constants bit will cause the counter to use the
values in Counter Constant B Reg
ister 2. Writing a “0” will cause the counter
to use the values in Counter Constant B. By default, a counter will always
use the values in Counter Constant B Register.
Digital Input Register (Read Only) - (BAR0 + 0x0000 0160)
AP483 Din 1 not supported
AP484 Din 0 and Din 1 not
supported
This 8-bit read only register contains the value of the Digital TTL inputs. A
read value of one symbolizes a logic “high” while a value of zero represents a
logic “low”. Table 3.
20 identifies the position of the available input bits.
Table 3.20 Digital Input
Register
Note that any registers/bits
not mentioned will remain at
the default value logic low.
BIT
FUNCTION
0
Din 0
1
Din 1
2-31
Not Used
Digital Output Register (Read/Write) - (BAR0 + 0x0000 0164)
AP483 Dout 3 to Dout 5 not
supported
AP484 Dout 0 to Dout 5 not
supported
This 8-bit read/write register contains the value of the Digital outputs. To set
a digital output “high” write a one to the
proper bit position. To set the value
logic “low”
write a zero to the proper bit. On power-up output bits are
initialized to logic "1
”. Table 3.
21 identifies the position of the available
output bits.
Table 3.21 Digital Output
Register
Note that any registers/bits
not mentioned will remain at
the default value logic low.
BIT
FUNCTION
0
Dout 0
1
Dout 1
2
Dout 2
3
Dout 3
4
Dout 4
5
Dout 5
6-31
Not Used
