An error code of -200 (0XFF38) indicates the DFCM module expected a DLE-ACK message from the DF1 device, but received a DLE-NAK instead. Related Keywords: ProLinx MVI46 MVI56 MVI71 MVI94 DF1 Read More

The 1747-AIC module only converts the signal from RS-485 to RS-232. It does not convert the protocol from DH-485 to DF1, which the DFCM module requires. For DH-485 communications, check the ProSoft website for modules which support DH-485. Read More

The 5202-DFNT-DFCM4 or the 5202-MNET-DFCM4 gateways are capable of allowing multiple masters to communicate with 1 or more DF1 slave devices. This gateway has 4 configurable DF1 serial ports that facilitates the exchange of data between the devices... Read More

The Wonderware driver ABKF2 does not process or use the station ID when operating in Full Duplex mode.  The DF1 full duplex specification requires a station id when more than one device is present on a network. A workaround has been implemented... Read More

Yes, the DF1 protocol limits the amount of words transmitted in a single command. This amount varies based on the functions code being used. Related Keywords: DFCM MVI46 MVI56 MVI71 DF1 ProLinx MVI94 Read More

The number 16, or 10hex, is a special number in the protocol.  This number is used as an 'attention' character, as special control character that alerts DF1 receivers that a command message or response is following. DF1 protocol... Read More