InteliLite Global Guide
156
01 – Ilegal function is returned if an incompatible type of operation is applied for a specific object, e.g. if
function 03 is applied to a binary object.
02 – illegal address is returned if the client tries to perform an operation with a object address that is not
related to any existing object or that is located inside an object which is composed by multiple addresses
(registers).
04 – device error is returned in all other errorneous situations. More detailed specification of the problem can
be consequently obtained by reading the registers 4205 – 4206.
Reserved registers
There are several registers with specific meaning. These registers are available in all controllers regardless of
the configuration.
Register
addresses
Number of
registers
Access Data type Meaning
4200 - 4201 2 read/write Time RTC Time in BCD code
4202 - 4203 2 read/write Date RTC Date in BCD code
4204 1 read/write Unsigned8
Index of the language that is used for text
data provided by MODBUS (e.g. alarmlist
messages).
4205 - 4206 2 read Unsigned32
Last application error. To be read after the
device returns the exception code 04. It
contains specific information about the error.
4207 - 4208 2 read/write Unsigned32
Writing:command argument
Reading: command return value
4209 1 write Unsigned16 Command code
4010 1 - - Not implemented
4211 1 write Unsigned16 Password
4212 - 4213 2 read Unsigned32 Communication status
4214 1 read Unsigned8 Number of items in the Alarmlist
4215 - 4241 27 read Alarm 1. record in alarm list
4242 - 4268 27 read Alarm 2. record in alarm list
4269 - 4295 27 read Alarm 3. record in alarm list
4296 - 4322 27 read Alarm 4. record in alarm list
4323 - 4349 27 read Alarm 5. record in alarm list
4350 - 4376 27 read Alarm 6. record in alarm list
4377 - 4403 27 read Alarm 7. record in alarm list
4404 - 4430 27 read Alarm 8. record in alarm list
4431 - 4457 27 read Alarm 9. record in alarm list
4458 - 4484 27 read Alarm 10. record in alarm list
4485 - 4511 27 read Alarm 11. record in alarm list
4512 - 4538 27 read Alarm 12. record in alarm list