Adlink PCI-7256 Manual do Utilizador descarregar pdf (Página 25)

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3.2 Relay Output Control Register

There are 16 latching relays on each PCI-7256 board. Each latching relay is

controlled by two bits of the control register. The setting (0,1) means the

latching relay is in RESET condition. Under the RESET condition, the normal

open(NO) signal line is ‘open’ from the common(COM) line and the normal

close(NC) signal line is connected with the common line. The setting (1,0)

means the normal open signal line is now closed, while the NC signal is open.

For safety operation, do not fill the register with (1,1) or it will cause an

uncertain output status of the relay.

For more information about the latching relay and software function library,

please refer to section 4.1 and 5.3, respectively.

Address: BASE + 0x00

Attribute: Write

7 6 5 4 3 2 1 0

DO3_S DO3_R DO2_S DO2_R DO1_S DO1_R DO0_S DO0_R

15 14 13 12 11 10 9 8

DO7_S DO7_R DO6_S DO6_R DO5_S DO5_R DO4_S DO4_R

Address:BASE + 0x02

Attribute: Write

7 6 5 4 3 2 1 0

DO11_S

DO11_R

DO10_S

DO10_R

DO9_S DO9_R DO8_S DO8_R

15 14 13 12 11 10 9 8

DO15_S

DO15_R

DO14_S

DO14_R

DO13_S

DO13_R

DO12_S

DO12_R

DOx_R: Reset bit of relay output channel x, x=0~15

DOx_S: Set bit of relay output channel x, x=0~15

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Adlink PCI-7256 Manual do Utilizador Página 25