ProSoft Technology MVI56E-MNETC - Manual (Page 44)

Guide to the MVI56E-MNETC User Manual MVI56E-MNETC ♦ ControlLogix Platform
User Manual Modbus TCP/IP Client Enhanced Communication Module
Page 44 of 183 ProSoft Technology, Inc.
February 3, 2013
Read Register Count
0 to 10,000
The Read Register Count parameter specifies the size of the Read Data area of
module memory and the number of registers to transfer from this area to the
processor, up to a maximum of 10,000 words.
Note: Total Read Register Count and Write Register Count cannot exceed
10,000 total registers. Read Data and Write Data Areas must be configured to
occupy separate address ranges in module memory and should not be allowed
to overlap.
Write Register Start
0 to 9999
The Write Register Start parameter specifies the start of the Write Data area in
module memory. Data in this area will be transferred in from the processor.
Note: Total user database memory space is limited to the first 10,000 registers of
module memory, addresses 0 through 9999. Therefore, the practical limit for this
parameter is 9999 minus the value entered for Write Register Count, so that the
Write Data Area does not try to extend above address 9999. Read Data and
Write Data Areas must be configured to occupy separate address ranges in
module memory and should not be allowed to overlap.
Write Register Count
0 to 10,000
The Write Register Count parameter specifies the size of the Write Data area of
module memory and the number of registers to transfer from the processor to
this memory area, up to a maximum value of 5000 words.
Note: Total Read Register Count and Write Register Count cannot exceed
10,000 total registers. Read Data and Write Data Areas must be configured to
occupy separate address ranges in module memory and should not be allowed
to overlap.