DF89 module is the Smar solution for Modbus applications. Its main feature is working as Modbus-HSE gateway 
to provide power to the connectivity and flexibility to the system application. Through the HSE network and other 
DFI302 modules, it is possible the communicaton between field devices and other industrial protocols, 
providing greater flexibility to the control strategy projects. Through the I/O cards, 
it is also possible to execute discrete control via relay diagram logic (“Ladder Diagram”), allowing a single and 
integrated system. The module DF89 also can act as Modbus gateway, allowing the interconnection of modules that are not 
fieldbus or HSE.

Characteristics and Controller Limits

• 2 10/100 Mbps Ethernet Ports;
• Support up to 100 FOUNDATIONTM fieldbus function blocks;
• Support Flexible Function Block (FFB);
• Discrete control via relay diagram;
• Access to I/O modules;
• Webserver;
• Modbus RTU Slave in the RS232 serial port and Modbus TCP Slave in the Ethernet.
• Redundant operation;
• Real Time Clock (RTC) and watchdog;
• Supervision for up to 2000 points per second

What is new

DF89 Device Revision 
Firmware versão 1.x : Device Revision = 1 
Firmware versão 2.x : Device Revision = 2 
Firmware versão 3.x : Device Revision = 3 
Firmware versão 4.x : Device Revision = 4

Resumo das correções/melhorias:
1 - NUM_OF_DYNAMIC_SESSION changed from 4 to 5 server (dynamic) sessions to permit simultaneous access from four (4) HSE HOSTs.
2 - 10976: Loop anel ethernet – multicast
3 - Fixed cpuload calibration.