GE Monogram GFK-1115 Manuel D’Utilisation

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GFK-1115 
Chapter 4   Configuring Communication with the PLC 
4 - 9
4
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Global data starting reference*
This parameter must be set only if you will be communicating with a Series Six or Series
Five PLC. It specifies the offset within the Series Six/Five register memory where global
data broadcast by the C400 Controller is to be placed. Note that this parameter affects all
Series Six and Series Five PLCs on the Genius bus. You should set this offset within the
range of 1 — 16384, inclusive, to specify a fixed register offset. If you wish the offset to
be calculated by the C400 Controller based on its own bus device address, leave the offset
specified as 0. In this case, the actual offset will be calculated according to the formula
(BusAdr * 64) + 1
where BusAdr is the serial bus device address of the C400 Controller when it powers up
on the Genius bus. This calculation will yield offsets as seen in the table below:
C400 Bus Address
Global Data Starting
Reference
0
1
1
65
2
129
.
.
.
.
.
.
31
1985
SNP 90 Protocol Parameters (Definition in PCS)
For details on using SNP90 communications with the C400 Controller, refer to the PANELWARE
MMI Application Manual for GE Fanuc Series 90 Protocol (SNP)
 
 
GFK-0850.