Software - Testing and Simulation
The DLM400 is a window/data spy into all requests and response frames passing between two or more devices on a serial Modbus circuit. It supports RS-485, RS-422, and RS-232. Additionally, the DLM400 supports MIL-Std-188-114 monitoring, testing, and RS485 simulation. Analyzer is small, battery-powered, light weight and portable.
Modbus, Modbus TCP
Sees Modbus data requests and data responses between client and server; provides a neutral evaluation platform to discover failures and invalid responses or requests; can act as server on a 485 bus; can record and retransmit Modbus frames; can upload observed frames to a PC for documentation
Up to 230.4K; RS485/RS232/RS422, MIL-Std-188-114; RS485 Master; Asynchronous, Bisynchronous, SDLC/HDLC; Carrying case, test cable, wall transformer, batteries, 102 LED Break out Box, 9-pin to 25-pin adapters, manual, quick start instructions; Auto configure determines configuration and automatically presents data to screen; can output captured data buffer, FOX, All bits user string 1/2 FOX2 00, FF Patterns 511, all ASCII set, 0-FF Hex; Triggers can be set to start or stop data capture on user-defined strings of up to 80 bytes. Start triggers can be automatically reset after occurrence of stop trigger; 9.25 x 5.50 x 1.37 inches; 23 ounces ; 64 key QWERTY keyboard PLUS PC style directional keypad ; 8 line by 30/40 character LCD; can average times between triggers in milliseconds to measure computer and line performance; BERT performance statistics and performance calculations; help for all functions; Parity: Odd, Even, None; ASCII, EBCDIC; 9-volt battery (9 hours with alkaline) or by supplied external transformer