Honeywell ERX350 User Manual page 121

5 User Access
5.3 Connecting to ERX350 via MasterLinkR515 & MasterLinkSQL
The firmware upgrade is performed through the IrDA serial interface that is used by the MasterLinkR515
& MasterLinkSQL software. The IrDA serial interface provides an electrically isolated interface and
requires no additional hardware or software beyond what is already needed to utilize the MasterLinkR515
& MasterLinkSQL software. (Firmware upgrades can also be performed over the RS-232 port but not the
RS-485 port.)
Caution: It is important that you read all items and logs (audit trail logs, event log, alarm log) before
performing a firmware upgrade because most items will be set to default values and the audit trail
logs will be erased.
Running Firmware Upgrader
1. In the MasterLinkSQL window, click Instrument > Firmware Upgrader
The Firmware Upgrader dialog box appears.
Honeywell
2023
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