Raco Catalyst, Дополнение к руководству пользователя

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Saved: 2014-06-18
Filename: Catalyst Ethernet Addendum 1 1 V1_5 released
RACO Manufacturing and
Engineering
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• Catalyst with Ethernet autodialers don’t work this way. All the different areas are mapped on top of one
another.
30001 holds the same value as 40001.
Coil 00001 holds the same value as the first bit of 30001 or 40001
Registers 1-123 hold read only input data
Coils 1-1968(16-bit*123) hold input data
Registers 1025 to 1147 hold read/write output data
Coils 16385 (16-bit*1025) to 18353 (+16-bit*123) hold read/write output data
•
This allows flexibility to look at data as input registers, holding registers, coils, etc., as many Modbus
masters don’t have all functions implemented
•
Since Catalyst channels are completely compatible with the logical and I/O addressing scheme for the
file structure of the Allen Bradley controllers (SLC series and newer) processors, the table below should
look familiar.
•
TABLE #1
Register Address
Description Size/Limitation Catalyst SNA
0xxxx Coil number xxxx 1-bit 1*node*0xxxx
1xxxx Input number xxxx 1-bit 1*node*1xxxx
2xxxx Input register number xxxx 16-bit 1*node*3xxxx
3xxxx Output register number xxxx 16-bit 1*node*4xxxx
4xxxx Floating Point register 32-bit 1*node*5xxxx
Note: The 5x and 4x references share the same data space. That is, an address of the form 5nnnn takes the 32
bits beginning at location 4nnnn and extending through 4nnnn + 1. These 32 bits are then interpreted as an
IEEE floating point number.
Important:
Catalyst Ethernet SNA addresses have the form 1*2*(Register Address). 1 Table #1 illustrates the data
file convention within the Catalyst and the link to PLC via SNA (Source Net Address).
Table #1 also shows the Allen-Bradley-supported address types available to link to Catalyst channels.
Indirect, indexed and symbolic addressing schemes are not supported.
•
Table #2
Register
Address
Description Size /
Limitation
0xxxx Coil number xxxx 1-bit
1xxxx Input number xxxx 1-bit
3xxxx Input register number xxxx 16-bit
4xxxx Output register number xxxx 16-bit
5xxxx Floating Point register 32-bit