Syncro - New Firmware Release (Version 5.5)

From 29th August 2006, all Syncro EN54 (BSI Kitemarked) control panels will be fitted with firmware version 5.5.

This firmware version resolves a software problem, which was identified on some Hochiki protocol Syncro systems installed with firmware version 5.4.

Firmware Version 5.4 was released at the beginning of July 2006 and allows the Syncro panel to fully support the features of the ACB-E Rate of Rise heat detector. In order to facilitate these features, additional loop protocol commands were introduced.

However, it has been found that some installations configured with two or more CHQ-SIO mains powered relays connected to a single detection loop will report “Bad data fault” from random addresses on the loop.
This fault is reported only following operation of the “Reset” button on the Syncro fascia and will persist for around 5-10 seconds, and then clear automatically.
The operation or integrity of the fire detection system is not affected as a result of these messages; it is just a nuisance to the operator when these faults are reported.

Firmware Version 5.5 resolves the problem of bad data faults being reported immediately following the Reset action.

Any Hochiki protocol sites that have two or more CHQ-SIO fitted to a single loop and currently installed with Version 5.4 firmware should be upgraded using the Loop Explorer “Tools / Flash” firmware upgrade facility.
The version 5.5 upgrade file may be downloaded using the link below.

NOTE: This upgrade is only suitable for panels with V5.2 or later firmware installed.

Download Ver.5.5 English language upgrade file:

Syncro Analogue Addressable Fire Control Panel

Loop Explorer configuration transfer issues

We have received a number of enquiries where Loop Explorer cannot connect to the Syncro panel and therefore it is not possible to transfer the configuration file to or from the fire panel.

If this happens, there are a number of standard items to check;

1) Has the computer been used to successfully transfer configuration files to the Syncro panel in the past?

If this is the first time the computer has been used, it may be necessary to configure the Loop Explorer program to select the correct COM port used to connect to the control panel. The COM port used to connect to the panel is configured using the “File / Options” menu in Loop Explorer.

2) Does the Syncro panel have a printer connected? Is the printer out of paper?

If the panel has the 58mm wide integral printer fitted, then it is important that the paper is installed through this printer. The printer will detect that the printer is out of paper and will buffer print messages until the paper is loaded into the printer. This action may cause problems when trying to connect to the panel using Loop Explorer as the panel PC port and printer port share common hardware.
Try removing the printer ribbon from the printer port or load 58mm thermal paper in the printer and attempt to re-connect to the panel

3) Is a USB to RS232 data converter being used to provide the serial link to the Syncro panel?

On a very few occasions, some customers have had problems connecting to the Syncro control panels via USB to serial converters. Ensure that the latest drivers are installed for your converter and that the correct COM port is selected. Also ensure that the flow control for the COM port is switched off

4) Is the serial lead damaged?

Inspect the serial data lead for damage or poor connections. It is possible to open the 9-way D-type connector cover and visually verify that all three wires are soldered to the connector and that there are no short circuits present. The other end of the lead can only be visually inspected for signs of cable strain damage.

5) Can any hardware items be tested on other equipment?

If possible, try testing the computer and serial lead on another Syncro control panel. This should be straightforward on networked Syncro systems, as each panel has a serial port and can be used to transfer the configuration files.

After following these tests, please contact Kentec Technical Support for additional help.