Micromod Micro-DCI: 53MT6000 Micro-Tools - Manual (Page 115)

53MT6000 INSTRUCTION MANUAL
Database Editor 99
There are restrictions on the maximum number of L & C type data that can be written. Refer to the PLC
Instruction Manual for details.
PLC Error Code: Exception Response Code sent from the PLC. [DDIA = B671, DDIB =
B647]
01 = Illegal function, not a valid function code
02 = Illegal Data Address, not an allowable address
03 = Illegal Data Value, the fetch quantity requested is not allowed
04 = Failure in Associated Device, the slave failed to respond to the
message
05 = Acknowledge, the slave has accepted and is processing a
long
duration command
06 = Busy, Rejected Message, the slave is busy processing a long
duration command
07 = NAK, Negative acknowledgement, the program function just
requested can not be performed
Comm Error - Read: This Error Code is used to report messages related to the
communication message. [DDIA = B672, DDIB = B648]
0 = no errors
251 = 53MC5000 hardware malfunction
252 = 53MC5000 hardware malfunction
253 = bad message, a bad message indicates that errors were
found
in the predictable portion of the message
254 = bad checksum, the message frame is not properly formatted
255 = timeout error, no message came back from the PLC
Comm Error Count -
Read: This is a running total of the PLC Errors that are not successful (PLC
Error other than 00). [DDIA = B673, DDIB = B649]
Unit Address - Write: This is the address of the PLC to be accessed. [DDIA = B674, DDIB =
B650]
Starting Memory
Address - Write: This is the beginning memory address for writing data to the PLC. All
subsequent write memory locations are referenced from the starting
location as contiguous words of data. The written data is mapped
from the controller database into the PLC in exactly the same order.
This is a decimal number that is converted and stored as two bytes in
the controller database. [DDIA = B675 &B676, DDIB = B651 & B652]
Words of L to Write: Beginning with the Starting memory address for the writes, this is the
number of Logical data words to be written to the PLC. Words of data
stored in the controller’s database as "L" type data is written to the
PLC as logical data. If no logical type data is to be written, this value
should be set to zero. [DDIA = B677, DDIB = B653]
Words of C to Write: Immediately following the logical words of data is the number of
floating-point words of data to be written. Words of data stored in the
controller’s database as "C" type data are written to the PLC as
Floating point or integer data. If no floating point or integer data is to
be written, this value should be set to zero. [DDIA = B678, DDIB =
B654]
ENTRY EXPLANATION