Pickering PCI CONVENTIONAL 50-110-021, User Manual

SECTION 4 - PROGRAMMING GUIDE 

Page 4.5

pickering

GENERAL PURPOSE REED RELAY MODULE  50-110/115-021/121

Using pi40iv

The IVI driver has no special labelling for this card and treats the relays as an array of switches, labelling the 

channels using com / nc / no labelling tags.

pi40iv_Connect(vi, “com1”, “no1”);   

// Connects chA1 to com 1 

pi40iv_Disconnect(vi, “com1”, “n01”);  // Disconnects chA1 from com 1 

       Reconnects chB1 to com 1 

pi40iv_Connect(vi, “com1”, “no6”);   

// Connects chA6 to com 6

SPST and DPST versions use the simple com/ch labeling tags.

The IVI Switch driver specification contains no bulk setting capabilities.

Using PIPX40

setChannelState

ViUInt32 sub_unit = 1; 

pipx40_setChannelState(vi, sub_unit, 1, VI_ON);  

// Connects chA1 to com1

pipx40_setChannelState(vi, sub_unit, 1, VI_OFF); 

// Disconnects chA1 from com1

   Reconnects chB1 to com1 

pipx40_setChannelState(vi, sub_unit, 6, VI_ON);  

// Connects chA6 to com6

setChannelPattern

// Sub-unit is 64 bits wide, so 2 ViUInt32 values are needed to hold the entire pattern
ViUInt32 data[2]; 

data[0] = 1; 

// Sets lowest bit to 1, chA1 to com1 

pipx40_setChannelPattern( vi, sub_unit, data); 
data[0] = 0x20;  

// Sets 6th bit, chA6 to com6 

// All other relays are set to off 

pipx40_setChannelPattern( vi, sub_unit, data); 

PROGRAMMING THE MODULE  

Here are some simple examples of using the drivers with the 50-110-121 (64 Channel SPDT) 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);  // Connects channel A1 to com 1

PIL_OpBit( card_num, sub_unit, 1, 0);  //  Disconnects channel A1 from com 1

   Reconnects channel B1 to com 1 

PIL_OpBit( card_num, sub_unit, 6, 1);  // Connects channel A6 to com 6 

WriteSub

// Sub-unit is 64 bits wide, so 2 DWORDs are needed to hold the pattern 

DWORD data[2]; 

data[0] = 1; 

// Sets lowest bit to 1, channel A1 to com 1 

PIL_WriteSub( card_num, sub_unit, data);
data[0] = 0x20;  

// Sets 6th bit, channel A6 to com 6 

// All other relays are set to off 

PIL_WriteSub( card_num, sub_unit, data);

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com