Caterpillar — Establishing Communication
Operation · Caterpillar PC Software / CDVR
From a Caterpillar service manual — check it applies to your exact model before use.
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Before you start
- Battery power (24 VDC) must be available at "P12-8" (B+) and "P12-7" (B-) in order for the remote communications port to operate.
- Issuing commands while the "Please wait..." dialog box is present may disrupt communication between the PC software and the voltage regulator.
Procedure
- Open the voltage regulator communication port by clicking "Communications" on the menu bar, hovering the mouse pointer over "Open Comm Port" and clicking "RS-232 Port".
- Enter the password in the "Password" dialog box. Each voltage regulator is delivered with "cat" as the password.
- On the "Comm Port" screen, select "Comm 1", "Comm 2", "Comm 3", or "Comm 4" as the active communication port and click the "Initialize" button.
- Wait until the "Please wait..." dialog box disappears before executing communication commands.
Source: Caterpillar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.