Chapter 4 Troubleshooting; Communication Status - Emerson Rosemount 2410 Instruction Manual

Manual Supplement
00809-0800-2410
4 Troubleshooting
4.1

Communication status

Table 4-1: Troubleshooting Chart
Problem
No communication with the
tank hub using TRL2 bus or
RS485.
No communication with the
tank hub using the Sakura
bus, and no Sakura bytes are
received (input register 1256).
No communication with the
tank hub using the Sakura
bus, but the tank hub is
receiving Sakura requests (input
register1256).
Sakura level value is received by
the host but is incorrect.
Sakura temperature value is
received by the host but is
incorrect.
Check message status
Verify that communication is working properly by checking the input registers as described
in Table
Table 4-2: Messages Input Registers
Register number
1256
1258
1260
Emerson.com/Rosemount
Cause
4-2. See Table 4-3 for troubleshooting actions.
Input register
RecMessages
MessagesToMe
SentMessages
1. Incorrect Modbus address.
2. Incorrect communication parameter settings. Check LCD
Display during startup, for used settings.
1. Tank hub software is older than 1.F1.
2. Sakura bus is not connected correctly.
3. Tank hub Sakura modem is not detected, see the ModemInfo
input registers.
4. Sakura bus baud rate is not detected, see the ModemInfo
input register 45173, SakuraBaudRate.
1. Host Sakura address is not the same as configured in the
tank hub.
2. The tank hub is responding to fast. Change the RxToTx time,
see Table 5-12.
1. Tank hub invalid level.
2. Sakura address is not in correct tank hub tank position.
1. Tank hub invalid temperature.
2. Sakura address is not in correct tank hub tank position.
Description
Total queries received
Number of received queries addressed to me
Number of sent messages
Troubleshooting
August 2023
19