Input Registers: Channel Data; Setting The Rate Limit/R Factor - Spectrum Controls SLC 500 User Manual

A-2 Appendix A: Floating Point Rate Mode
Setting the Rate
Limit/R Factor:
Input Registers:
Channel Data
User's Manual Pub. 0300181-07 Rev. A
Table A-1. Data Word Addresses
CTR8 CTR4
I:e.0 to I:e.3 I:e.0 to I:e.3
I:e.4 to I:e.7 I:e.4 to I:e.7
I:e.8 to I:e.11 I:e.8 to I:e.11
I:e.12 to I:e.15 I:e.12 to I:e.15 3 Channel LSW, Rate Data High, Rate
I:e.16 to I:e.19 (n/a)
I:e.20 to I:e.23 (n/a)
I:e.24 to I:e.27 (n/a)
I:e.28 to I:e.31 (n/a)
Figure A-2. Data Words
The R Factor function is used to activate the floating point mode. Setting the
value to -1 activates this mode. Use Bit 15 in your channel configuration word to
save the R factor in the modules non-volatile memory.
Figure A.3 - Rate Limit / R Factor Word
Counter Register, Low word:
This input data register contains the lower word of the counter accumulator. This
register is a signed 16 bit word in binary 2's complement format and will allow
count values up to ±32K. This word is used in conjunction with the counter's
Scale/Limit Value
0 Channel LSW, Rate Data High, Rate
Data Low, Status Reg
1 Channel LSW, Rate Data High, Rate
Data Low, Status Reg
2 Channel LSW, Rate Data High, Rate
Data Low, Status Reg
Data Low, Status Reg
4 Channel LSW, Rate Data High, Rate
Data Low, Status Reg
5 Channel LSW, Rate Data High, Rate
Data Low, Status Reg
6 Channel LSW, Rate Data High, Rate
Data Low, Status Reg
7 Channel LSW, Rate Data High, Rate
Data Low, Status Reg