User manual

Toolbox 32 User Manual 1.47d www.cse-semaphore.com/mykingfisher
Page
246
AI-10
Register
(ss = slot 1-64)
Raw
Scale
Read/
Write
Description
#AIss.1 to 8 Signed
-32768 to
+32767
Read Analog input channels 1 to 8. Uses a 16-bit analog to digital converter.
Analog values are stored as 15-bit numbers with a leading sign bit.
The sign bit is set when the current or voltage input is negative.
#AIss.12
Bits 1 to 8 *
N/A Read Channels 1 to 8 under range respectively. Triggered when input is less
than 4mA for the 4-20mA range or when the input is negative for the 0-
20mA range.
#AIss.12
Bits 9 to 16 *
N/A Read Channels 1 to 8 over range respectively. Triggered when input is
greater (more positive or more negative) than the configured range.
Hardware Overview
*
Status bits are stored in an analog register in the module. To access these as digital bits, copy the analog register to a
local register. Eg. Copy #AIss.12 to #R10 using ladder logic. #R10.1 is then channel 1 under range status, #R10.9 is
channel 1 over range status etc.