User guide
P/N: 021-00154, Rev. A.6 - updated for V4.7 Tools     Page | 80  
6 DVC Expansion Modules 
6.1 Introduction 
The DVC5, DVC7 and DVC10 are programmable controllers. Each has a fixed number of Inputs and Outputs 
for standalone operation. If your system requires more inputs or outputs than the DVC5/7/10 provide you have 
two expansion options. Additional DVC5, DVC7 and DVC10s can be configured each as master controllers for 
a portion of your application. Each DVC5, DVC7 and DVC10 will have their own application program and can 
communicate with each other using an application specific CAN Bus message we will describe. In addition the 
DVC7 and DVC10 (not the DVC5) can talk to other DVC expansion modules over the CAN Bus to expand your 
specific input and output capabilities. It is important to note that if the system requires multiple modules of the 
same model, specific module names and Mac ID# must be unique. For instance, if the system uses (2) DVC50 
modules, one could be named dvc50_1 with a Mac ID of 50. The other could be named dvc50_2 with a Mac ID 
of 51. At this time the DVC7 and DVC10 can talk to the following units: 
  DVC21   40 Sinking and Sourcing Digital Inputs 
  DVC22   40 Sinking Digital Inputs 
  DVC41   12 High Side Outputs for Bang-Bang Valves or LEDs 
  DVC50   3 Output Groups, 8 Digital, 3 Analog and 3 Universal I/Os similar to the DVC10 
DVC61   4x20 character screen display with 12 display variables and 5 single 
 pole double throw digital inputs 
DVC62  RS232 connected handheld 4X20 character display with a 20 button keypad for data 
entry. 
DVC65   2x20 Character Screen Output 
  DVC70   Memory module for Data Logging and Tracing 
  DVC80   J1939 CAN Bus Support 
  DVC5/7/10 to 5/7/10  The ability multiple DVC5, DVC7 and DVC10s to talk to each other 
  D206    RS232 connected Touch Screen Color Graphical Display 
The following sections describe each of these modules. 
6.2 DVC21 










