Emerson Rosemount 2410 - Troubleshooting; Communication Status

4 Troubleshooting
4.1 Communication status
Table 4-1: Troubleshooting Chart
Problem Cause
No communication with the
tank hub using TRL2 bus or
RS485.
1. Incorrect Modbus address.
2. Incorrect communication parameter settings. Check LCD
Display during startup, for used settings.
No communication with the
tank hub using the Sakura
bus, and no Sakura bytes are
received (input register 1256).
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.
No communication with the
tank hub using the Sakura
bus, but the tank hub is
receiving Sakura requests (input
register1256).
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.
Sakura level value is received by
the host but is incorrect.
1. Tank hub invalid level.
2. Sakura address is not in correct tank hub tank position.
Sakura temperature value is
received by the host but is
incorrect.
1. Tank hub invalid temperature.
2. Sakura address is not in correct tank hub tank position.
Check message status
Verify that communication is working properly by checking the input registers as described
in Table 4-2. See Table 4-3 for troubleshooting actions.
Table 4-2: Messages Input Registers
Register number Input register Description
1256 RecMessages Total queries received
1258 MessagesToMe Number of received queries addressed to me
1260 SentMessages Number of sent messages
Manual Supplement Troubleshooting
00809-0800-2410 August2023
Emerson.com/Rosemount 19