Control Register 3 Value = DA hexadecimal ( = 1101 1010 binary) (= 42 ORed with 98)
EVEN MUX
Channel 2 of MUX Closed (= Channel 62)
ODD MUX
Channel 3 of MUX Closed (= Channel 73)
Control Register 4 Value = 33 hexadecimal ( = 0011 0011) ( = 30 ORed with 03)
EVEN MUX
No Channels Closed (= Channels 80 through 87) (CEVEN = 0)
ODD MUX
No Channels Closed (= Channels 90 through 97) (CODD = 0)
Control Register 5 Value = C6 hexadecimal (= 1100 0000) (= 80 ORed with 46)
EVEN MUX
Channel 6 of MUX Closed (= Channel 106)
ODD MUX
Channel 0 of MUX Closed (= Channel 110)
The A24 address of each control register is based on three items:
•
the A24 Offset assigned by the Resource Manager
•
the Module Address assigned to the relay module with DIP Switch SW-1
•
which control register to write to (Control Register 0 through 5)
Control Register 0 is located at the base address for the module. For example:
Offset from Resource Manager = 200 000 hexadecimal
Module Address = 3 (decimal)
Module Address x 400 hex (1024 decimal) = C00 hex
Base Offset of each 1260 Module = (A24 Offset) + ((Module Address) x 400 hex) + 1
(200 000) + (C00) + 1 = 200 C01
Control Registers are located only at odd addresses. Therefore, Control Registers would be located at the
following addresses
Control Register 0
200 C01
Control Register 1
200 C03
Control Register 2
200 C05
Control Register 3
200 C07
Control Register 4
200 C09
Control Register 5
200 C0B
NOTE: When using VISA functions, such as viIn8() and viOut8(), the A24 offset is already included by VISA.
Therefore, when using a function such as viOut8() to write the value C6 (hex) to Control Register 5 in the
example above, do NOT include the A24 in the function call:
Thus, the following function call may be used to write the value C6 to control register 5.
viOut8( hdl, 0xC0B, 0xC6 );
The 1260-36 is the only 1260 Series Module where the data read back from the control register is NOT
inverted. If the value C6 is written to a control register, the value read back will be C6.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
