Spectrum Controls 140 EHC 204 00sc - Manual (Page 23)

Quantum Series 140 EHC 204 00sc 140 EHC 208 00sc
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Module Addressing
The module uses sixteen zoom (parameter) registers, nine 4X (output) registers for configuration words, and
eight 3X (input) registers for data and status words.
Table 3-1 Module Registers
Register
Function
Zoom+0..7 Basic Configuration data (4ch - 0..3 / 8ch - 0..7)
Zoom+8**** Bank Switch Period in Autosequence Mode
4X Module Configuration Word
4X+1 Scale Factor / Count Limit Word
4X+2 Channel 1 Control Word
4X+3 Channel 2 Control Word
4X+4 Channel 3 Control Word
4X+5 Channel 4 Control Word
4X+6* Channel 5 Control Word
4X+7* Channel 6 Control Word
4X+8* Channel 7 Control Word
4X+9* Channel 8 Control Word
3X Module Status
3X+1*** Count Data LSW Chan 2*N-1
3X+2*** Count Data MSW 2*N-1
3X+3*** Count Data LSW Chan 2*N
3X+4*** Count Data MSW 2*N
3X+5*** Rate Data 2*N-1
3X+6*** Rate Data 2*N
3X+7*** Status Data 2*N-1
3X+8*** Status Data 2*N
Note X=bank number
*These registers only apply to the 8 channel counter (140 EHC 208 00).
***Comprehensive Mode shown. Speed mode explained in Data retrieval and Module Configuration Word (4X+0
Register under the description for Multiplexing Mode and Bank Number.
****The default is that the module update as fast as possible. This register allows the user to set in milliseconds the
update rate. For example, a 60 in this register will cause each bank to be updated in 60miliseconds. Since there are
four banks (in the 8 channel module) the total update time will be 240ms. In the four channel module the update
time would be 120ms.