Siemens Milltronics SF 500 - Parameters; Start Up (P001 to P017)

Page 86 Milltronics SF 500 - INSTRUCTION MANUAL 7ML19985CN01
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Communications
If three decimal places are being read in Total 1:
If three decimal places are being read in Total 1, and the value is too large to be read with
three decimal places:
I/O (R41,070 – 41,116)
The SF 500 provides I/O in the form of:
• discrete inputs
• relay outputs
•mA inputs*
•mA outputs*
* The standard SF 500 provides only one mA output (0/4 – 20 mA). The inclusion of an
optional mA I/O card provides two mA inputs (0/4 – 20 mA) and two additional mA
outputs.
For the I/O, the assigned registers represent the logic status (e.g. open or closed) of the I/
O as configured. Discrete inputs are configured via P270, auxiliary input function; while
relay outputs are configured via P100, relay function.
The I/O are mapped into the respective input and output registers, R41,070 and R41,080, as
follows:
For the mA I/O, the assigned registers represent the mA level (e.g. 0 to 20 mA) of the I/O
as registered in P911 and P914, mA output test (output value) and mA input value.
The mA I/O are mapped into the respective input and output registers:
For 0 to 20 mA I/O, the register value ranges from 0 to 20,000. For 4 to 20 mA I/O, the
register value ranges from 4,000 to 20,000. If the 4 or 20 mA values have been trimmed,
Bits 15 14 13 12 11 10 9876543210
0010010000000011
Bits
15 14 13 12 11 10 9876543210
1010010000000011
R41,070 R41,080
Input Bit Output Bit
11 1 1
2 2 2 2
33 3 3
4 4 4 4
55 5 5
Input Register Output Register
1 R41,090 1 R41,110
2 R41,091 2 R41,111
3 R41,112