Table 6-3: Troubleshooting Wireless Field Devices
Issue
Troubleshooting steps
Wireless device
does not appear
on the network
1. Verify the device has power.
2. Verify the device is within effect communications range.
3. Verify the proper Network ID has been entered into the device.
Wireless device
appears in the join
failure list
1. Re-enter the Network ID and Join Key into the device.
Wireless device
appears with
service denied
1. Verify the total number of devices on the network (100 max).
2. Go to
SETUP
→
NETWORK
→
BANDWIDTH
and click analyze bandwidth.
(Note: any changes will require the network to reform)
3. Reduce the update rate for the device.
Table 6-4: Troubleshooting Modbus Communications
Issue
Troubleshooting steps
Can not communicate
using Modbus RTU
1. Verify the use of RS-485.
2. Verify wiring connections. See
.
3. Verify if termination is required.
4. Verify that Modbus serial communications setting in the Gateway
match the Modbus Host settings. Log on to the Gateway and
navigate to
SETUP
→
MODBUS
→
COMMUNICATIONS
.
5. Verify the Modbus address for the Gateway.
6. Verify Modbus register mapping in the Gateway. Log on to the
Gateway and navigate to
SETUP
→
MODBUS
→
MAPPING
.
Can not communicate
using Modbus TCP
1. Verify secure / unsecure Modbus protocol settings in the Gateway.
Log on to the Gateway and navigate to
SETUP
→
SECURITY
→
PROTOCOLS
.
2. Verify the Modbus TCP communications settings in the Gateway.
Log on to the Gateway and navigate to
SETUP
→
MODBUS
→
COMMUNICATIONS
.
3. Verify Modbus register mapping in the Gateway. Log on to the
Gateway and navigate to
SETUP
→
MODBUS
→
MAPPING
.
Reference Manual
Troubleshooting
00809-0200-4420
September 2020
Emerson.com/Rosemount
59
Summary of Contents for Smart Wireless Gateway 1420
Page 1: ...Reference Manual 00809 0200 4420 Rev HE September 2020 Emerson Wireless 1420 Gateway ...
Page 34: ...Installation Reference Manual September 2020 00809 0200 4420 34 Emerson com Rosemount ...
Page 42: ...Commissioning Reference Manual September 2020 00809 0200 4420 42 Emerson com Rosemount ...
Page 62: ...Troubleshooting Reference Manual September 2020 00809 0200 4420 62 Emerson com Rosemount ...
Page 84: ...DeltaV Ready Reference Manual September 2020 00809 0200 4420 84 Emerson com Rosemount ...
Page 95: ...Reference Manual 00809 0200 4420 September 2020 Emerson com Rosemount 95 ...