W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Firmware:

Web Thermometer Pt100 / Pt1000

Model 57725


Current firmware
Date Changes and comments Firmware revision
March 2, 2020
  • Problem in OPC communication fixed
  • Problem with SNMP name indexing fixed
1.40
ZIP download
Older firmware
Date Changes and comments Firmware revision
January 31, 2020
  • Network stack optimized
  • Diagnostics list corrected
  • Configuration upload accelerated
  • Addition of SSL for MQTT connections
  • MQTT Client-ID now freely configurable
  • authentication mechanism stabilized
  • OPC communication optimized
  • DHCP functionality stabilized
  • Problem fixed: Error in device interface
  • Problem fixed: Error in SNMPv3 authentication
  • Problem fixed: Error in timed alarms when time is entered manually
  • Problem fixed: Error in MQTT authentication
1.39
ZIP download
November 28, 2019
  • Problem fixed: Zoom error in visualization
1.36
ZIP download
September 30, 2019
  • MQTT topics may now contain W&T tags
  • Passwords can now be set by uploading the configuration file.
  • Problem in SNMPv3 could have caused a "NotInTimeWindow" error.
  • Problem with REST Digest Authentication fixed.
1.35
ZIP download
August 6, 2019
  • Problems with factory default reset fixed.
  • Problems with MQTT ping interval fixed.
  • Problem fixed: MQTT Retain Flag was sometimes not set.
  • Problem fixed: Alarm Clear message with an Index > 12 alarms was incorrectly sent.
  • Problems with SNMPv3 module type detection fixed.
  • Possible problems with software reset fixed.
  • Possible calculation error with negative numbers fixed.
  • Possible log in problems when using certain mail server fixed.
  • Fall-back system for ensuring configuration integrity after firmware update improved.
  • MQTT standard paths added.
  • Device registration reserved only for the administrator user.
1.34
ZIP download
May 6, 2019
  • Fixed: Uploading of large configuration files failed.
  • Fixed: TCP client message was sometimes not initiated.
  • Fixed: Error in SSL stack eliminated.
  • Script components updated
1.32
ZIP download
March 26, 2019
  • First firmware version
1.31
ZIP download