Wiznet makers

Since 1988 MICRO‑AIDE has provided the rail signal industry with a broad range of event recording devices and systems that vary in capacity, size and features. Our considerable expertise in this field has also been used to create a highly innovative product referred to as a Vital‑Processor Data Logger (i.e., VDL‑A). The VDL‑A is unique in its ability to gather and report event data by communicating directly with a Programmable Logic Controller (PLC). The VDL‑A does not require wired attachments to spare vital and/or non‑vital relay points in order to report Digital Input events. Considerable material and labor‑relat‑ ed expense can be avoided by using the VDL‑A in place of a standalone Event Recorder. Additionally, a user interested in gathering incident or maintenance data will no longer need to log onto the PLC. Instead, critical data can be acquired by accessing the VDL‑A which operates strictly as a passive, non‑ vital monitoring device. The VDL‑A can be used with an Ansaldo Microlok II® and Siemens S7‑300 controller. The installed firmware determines which PLC will be monitored. The hardware used by both versions is identical.