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Response:
ADDRESS
fUnC-
TIOn
100
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4.3.5 EXCEPTIOn RESPOnSE
With an incorrect inquiry an Exception Response is transmitted and the
inquiry is rejected.
ILLEGAL fUnCTIOn:
The function code received in the inquiry is not sustained by the slave.
ILLEGAL DATA ADDRESS:
The register address does not exist. It must be smaller than 1152. With
the inquiries „Read holding Registers" and „Preset Multiple Regs" the
address comprises the register's start address and the number of registers. So
that the following applies
Register + number <1152; 128+8x128.
ILLEGAL DATA VALUE:
The data in the inquiry are not permitted. for example the number of
registers to be read is too high (max. 120).
4.4 REGISTER ALLOCATIOn
The registers are split up into the following areas:
PARAMETERS
Bus module
Controller X1
Controller X2
Controller X3
Controller X4
Controller X5
Controller X6
Controller X7
Controller X8
TAB. 3 REGISTER ALLOCATIOn Of ThE BUS MODULE fOR J-BUS AnD MOD-
BUS RTU
nO. ByTES SLAVE ID
2
4
REGISTER ADDRESSES
J-BUS
0 - 127
128 - 255
256 - 383
384 - 511
512 - 639
640 - 767
768 - 895
896 - 1023
1024 - 1151
RUn STA-
CRC
TUS
255
18, 116
MODBUS
40001 - 40128
40129 - 40256
40257 - 40384
40385 - 40512
40513 - 40640
40641 - 40768
40769 - 40896
40897 - 41024
41025 - 41152
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