
Chapter 8 - Appendices
8 - 16
584S Frequency Inverter
PNO Allocation
Block 0: (Binary Protocol Only)
Block 0: (Binary Protocol Only)
Block 0: (Binary Protocol Only)
Block 0: (Binary Protocol Only)
PNO
Access Description
0
R/O
Instrument Identifier. Same as ASCII mnemonic II.
1
R/W
Error report. Same as ASCII mnemonic EE
2
Reserved
3
R/O
Option Version of field bus option.
4
R/W
Changeband. In an enquiry poll or pseudo-enquiry poll R/W (see PNO 7), a value
must have changed by an amount equal to or greater than the hysteresis before it
will be reported. Hysteresis is measured in the smallest units applicable to each
parameter. For example, if hysteresis = 10, then a parameter with one decimal
point must change by 1.0, and a parameter with two decimal points must change by
0.10 before they will be reported
5
R/O
Serial link configuration.
Bit nos.
Description
0 - 3
Baud rate
0 = 300
1 = 600
2 = 1200
3 = 2400
4 = 4800
5 = 9600 (default)
4 - 15
Reserved
6
R/O
Field Bus option "network" address.
7
R/W
Control word for multi-parameter polling. For the purpose of multi-parameter polling,
the PNOs are arranged in 16 blocks of 8. Bit 0 of this parameter controls block 0
(PNO 0 to 7), bit 1 controls block 1 (PNO 8 to 15) bit 15 controls block 15 (PNO 120
to 127).
When a bit is 1 (default), a multi-parameter poll on this block operates normally.
When a bit is 0, a multi-parameter poll on this block with PNO = multiple of 8, and
CNO = 8 performs an enquiry poll instead (a pseudo-enquiry poll).
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