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Chapter 6: Series One Plus SPI Communications
6-1 SPI Network Functions
The Series One Plus controller equipped with the SPI communications option lets you operate
the controller on a network con-forming to Version 3.01 or later of the SPI protocol
specification.
When installed on an SPI network, SS/CS Series hopper loaders, as well as other auxiliary
processing machines, can be controlled by an injection molding machine (IMM) or an operator
at the IMM controls. Two (2) SPI interchangeable communication ports are provided for easy
connection into any daisy chain-type SPI network.
Series One Plus controllers with the SPI option support all required parameters of an SPI
network, and some of the “non-required” parameters, too. The supported parameters are:
• Echo (system use only)
• Version
• Status, process
Processing flag
Low material alarm (with auxiliary proximity switch
installed)
High vacuum alarm (central system units only)
No Convey alarm
• Mode, material
Machine on/off
Alarm acknowledgment
• Set point, Material A load time
• Set point, Material B load time
• Blanket poll (system use only)
Remember to properly terminate the first and last units on
an SPI network. If the Series One Plus controller is the first or last unit in the daisy chain,
terminate the transmission line by placing the jumper on JMP1 as shown here.
6-2 Setting Up the SPI Function
You’ll need to set several Series One Plus controller parameters before network
communication can occur. These parameters are set in expanded service menus.
To gain access to expanded service menus, disconnect and unplug the SS/CS Series hopper
loader, open the control box, and place a jumper across the SERVICE pins. Close the box and
re-apply power. You now have six (6) additional menus available; three (3) of these menus are
related to SPI operation.
Jumper ON Jumper OFF