GSTI50 Carlo Gavazzi

GSTI50, Dupline Interface Module® Modbus Model GSTI50, GSTI50, In principle, the GSTI50 is designed as an interface for the Dupline display® GTD50, but can be used by any Modbus-RTU master unit. The GSTI50 supports the "3" Modbus-RTU (read registers) function and the "16" function (write registers) and can read/write all 128 Ent./Sal. Dupline®. The maximum number of records allowed in a query is limited to 8 read registers and 8 write registers at a time., GSTI50, The Dupline module® GSTI50 is a Modbus-RTU slave interface module. 128 Ent./Ps. Dupline® can be read by a master control card. Multiple Dupline® GSTI50 modules can be connected to the same network and can operate together and in parallel with other modules using the same protocol. When the Dupline® GSTI50 interface module receives a telegram with output information for Dupline® receivers, it will automatically respond with a telegram with input information for the Dupline® transmitters. Safety principles: Each security module uses 2 channels to send its signal. Possible selections are in the range of A3/A4... P7/P8. The channel address that will control the security module must be defined. (Note that A1/A2 channel address is not allowed on the system. A1 is always used for secure synchronization between all security modules.) It will have the status "0" when A1 is OK, and the state "1" when A1 is wrong. A2 is surveillance of the Bus Dupline®. If the status is "0", the Dupline bus® is OK, if the status is "1", the Dupline bus® is wrong. If all configured safety modules send a valid "safe state" signal, then the relay contacts of the output modules will be closed. In any other case, such as unsafe status signals received from one or more safety modules or failure of the Dupline bus®, the relays will remain open and keep the system in a "safe state". When booting a secure system all contacts will remain open until a valid "safe status" signal is received from all security modules. If the Dupline® signal is missing or wrong, the GSTI50 will adjust the input status of all channels to OFF. Response time The response time for the dupline® complete safety circuit depends on the number of Dupline® channels, and the response time of the GSTI50 = max. 136 mseg. The response time of the channels can be calculated as: Response time in relay disconnection (worst case): 2 x Number of Dupline channels® + 40 [mseg]. Note: The response time is for the Full Dupline® safety circuit; from when a security input passes to an unseasured state until the output relay is disabled. Response time in relay activation (worst case): 4 x Number of Dupline channels® + 80 [mseg]. Note: The response time is for the Full Dupline® safety circuit; from when a safety input passes to a secure state until the output relay is activated.