39VIMCCN | 16171-126/3 Siemens VIM – Voltage Input Module

The Voltage Input Module (VIM) interfaces thermocouple and voltage input signals to the control module’s IOBUS. The VIM provides 16 channels, each of which can be configured to be a thermocouple or voltage input. The VIM can accommodate many input types with minimal configuration and high accuracy. Each input is electrically isolated from the module’s CPU, IOBUS, and ground to isolate field faults. In addition, each channel is isolated from other channels. This parameter only applies when using VIMs in a redundant system. Often one thermocouple is wired to both the primary and the backup VIM. If this is the wiring arrangement for the VIM being configured, specify SharedTC to be YES. If each VIM has its own thermocouples, then SharedTC should be NO. For non-redundant VIM’s, specify the default (NO).