Pickering 40-170, Руководство пользователя

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Page 4.3
HIGH POWER RELAY MODULE 40-170
pickering
SECTION 4 - PROGRAMMING GUIDE
Using pi40iv
The IVI driver has no special labelling for this card and treats the array of switches as a simple array, labelling the
channels using the normal com./ch labelling tags.
pi40iv_Connect(vi, com1, ch1); // Operates the A1/C1 relay
pi40iv_Disconnect(vi, com1, ch1); // Releases the A1/C1 relay
pi40iv_Connect(vi, com2, ch2);
// Operates the A2/C2 relay
The IVI Swtch driver specification contains no bulk setting capabilities.
Using PIPX40
setChannelState
ViUInt32 sub_unit = 1;
pipx40_setChannelState(vi, sub_unit, 1, VI_ON); // Operates the A1/C1 relay
pipx40_setChannelState(vi, sub_unit, 1, VI_OFF); // Releases the A1/C1 relay
pipx40_setChannelState(vi, sub_unit, 2, VI_ON); // Operates the A2/C2 relay
setChannelPattern
// Sub-unit is 2 bits wide, so 1 ViUInt32 value is needed to hold the entire pattern
ViUInt32 data[1];
data[0] = 1; // Sets lowest bit to 1, A1/C1 relay
pipx40_setChannelPattern( vi, sub_unit, data);
data[0] = 0x2;
// Sets 2nd bit, A2/C2 relay
// All other relays are set to off
pipx40_setChannelPattern( vi, sub_unit, data);
PROGRAMMING THE MODULE
Here are examples of using the drivers with the 40-170 module.
Using PILPXI
To operate a relay the user could use the simple OpBit command or the WriteSub commands
OpBit
DWORD sub_unit = 1;
PIL_OpBit( card_num, sub_unit, 1, 1); // Operates the A1/C1 relay
PIL_OpBit( card_num, sub_unit, 1, 0); // Releases the A1/C1 relay
PIL_OpBit( card_num, sub_unit, 2, 1); // Operates the A2/C2 relay
WriteSub
// Sub-unit is 2 bits wide, so 1 DWORD is needed to hold the pattern
DWORD data[1];
data[0] = 1; // Sets lowest bit to 1, A1/C1 relay
PIL_WriteSub( card_num, sub_unit, data);
data[0] = 0x2;
// Sets 2nd bit, A2/C2 relay
// All other relays are set to off
PIL_WriteSub( card_num, sub_unit, data);