Network Communications
UM353-1B
April
2012
5-2
EXTENDED MODBUS REGISTERS: The traditional addressing of Modbus Holding Registers has been limited to
9999. However, since the actual address is contained in a 16-bit word, addresses above 9999 are available. Many
Modbus Masters support this extended addressing. Configuration data for a Sequencer & Timers contained in a
single sequencer loop can be accessed in this space. The actual loop that can be accessed is contained in the Modbus
parameter MSLCP Modbus Sequencer & Timers Configuration Pointer located in register 40041. This register
contains the Modbus Index for the loop that can be configured with these extended parameters. A small number of
these parameters have also been mapped in the areas listed within the actual loop area for those Masters that cannot
access the extended area.
In addition, there are a number of registers reserved for the mappings of Modbus registers used in the Peer-to-Peer
functionality of the Ethernet function blocks.
Sequencer Mask Configurations ................................................ x10001 – x18000
Real Time Trip Block Configurations........................................ x19001 – x19021
Sequencer Time & Analog Configurations ................................ x20001 – x20999
Timer Function Block Configurations ....................................... x21001 – x21009
Reserved – Modbus/TCP Block Register................................... x29001 – x29019
Reserved – Modbus/TCP Analog Inputs Static Data ................. x30001 – x30352
Reserved – Modbus/TCP Analog Outputs Static Data............... x30353 – x30608
Reserved – Modbus/TCP Digital Inputs Static Data.................. x30609 – x30704
Reserved – Modbus/TCP Coil Inputs Static Data ...................... x30705 – x30832
Reserved – Modbus/TCP Analog Inputs Dynamic Data............ x30833 – x30896
Reserved – Modbus/TCP Digital Inputs Dynamic Data ............ x30897 – x30928
Reserved – Modbus/TCP Coil Inputs Dynamic Data................. x30929 – x30960
Reserved – Modbus/TCP Analog Outputs Dynamic Data ....... x30961 – x31024*
* Refer to the AIE function block in Section 3 Function Blocks for details.
Summary of Contents for 353
Page 12: ...Contents UM353 1B x April 2012 ...
Page 22: ...Introduction UM353 1B April 2012 1 10 ...
Page 30: ...Configuration Overview UM353 1B April 2012 2 8 ...
Page 122: ...Function Blocks UM353 1B April 2012 3 92 ...
Page 168: ...Data Mapping UM353 1B April 2012 6 28 ...
Page 204: ...Controller and System Test UM353 1B April 2012 9 8 ...
Page 222: ...Calibration UM353 1B April 2012 11 4 ...
Page 226: ...Circuit Description UM353 1B April 2012 12 4 ...
Page 238: ...Model Designation and Specifications UM353 1B April 2012 13 12 EC Declaration of Conformity ...
Page 240: ...Model Designation and Specifications UM353 1B April 2012 13 14 ...
Page 244: ...Abbreviations And Acronyms UM353 1B 14 4 April 2012 ...