Owners manual

Contents

Modbus Protocol User Guide 4

Delay after CTS Going Active (0-1275 ms, 5ms increments)______________________ 13

Delay Dropping RTS after Transmitting (0-1275 ms, 5 ms increments)______________ 13

Advanced Modbus Protocol Settings____________________________________ 13

Slave Address (0 for auto, or 1…255 fixed otherwise) ___________________________ 13

Allow Modbus Broadcasts (1=Yes 2=No) _____________________________________ 13

Use MB/TCP 0x0B/0x0A Exception Responses (1=No 2=Yes) ____________________ 14

Disable Modbus/TCP pipeline (1=No 2=Yes) __________________________________ 14

Character Timeout (10-7050 msec) _________________________________________ 15

Message Timeout (200-65000 msec) ________________________________________ 15

Serial TX delay after RX (0-1275 msec) (0) ___________________________________ 15

Swap 4x/0x to get 3x//x (1y) _______________________________________________ 15

Unit ID to IP Address Lookup Table ____________________________________ 16

Close Idle TCP sockets after (3-60 sec, 0=leave open) __________________________ 16

Redundant Entry Retries after (15-60 sec. 0=disable feature) _____________________ 17

A)dd, D)elete, E)xit Select Function _________________________________________ 17

Modbus Address From/To ________________________________________________ 17

Slave IP Address _______________________________________________________ 17

3: Monitor Mode and Firmware Upgrade 18

4: WiPort and WiBox Implementation 19

5: XPort Implementation 22

6: Troubleshooting and Technical Support 23

How fast can I poll? _________________________________________________ 23

I cannot get a slave response _________________________________________ 25

Only Slave ID #1 can be polled ________________________________________ 25

Every 2

poll seems to fail ___________________________________________ 25

Technical Support __________________________________________________ 28

Figures

Figure 1-1. Extended Modbus System Example....................................................................................6

Figure 2-1. Setup (Configuration) Mode Screen ..................................................................................10

Figure 2-2. Unit ID to IP Address Lookup Table...................................................................................16

Figure 2-3. Unit ID to Address Lookup Table Example........................................................................16

Tables

Table 4-1. Baud Rate ...........................................................................................................................24