CEM+ Procedures 41
Add Racks [Power]
Racks can be added individually or as multiples of the same rack type and dimmer type. Adding racks
is very easy and you are asked for everything needed to create a rack.
However, there are a couple of points you need to be aware of:
• Every Group of racks must have a Rack 1.
• Racks must be added sequentially, starting with rack 1 to a maximum of 16 racks.
• For European rack and module options, set the voltage to 240V.
- [FP] This is straightforward in the face panel menu (it’s the first setting).
- [Web] However, the web interface requires that you click the 240V check box then Save
Changes before the options will change. The first click of Save Changes after altering the 240V
setting will not add another rack (it changes the options), the next click of Save Changes will
add the specified rack(s).
• Rack Types: SRxx is an permanent installation rack and SPxx is any type of portable rack (including
touring racks). ESRxx and ESPxx are for European installation rack and portable racks respectively.
In all cases, the “xx” number is determined by the number of slots in the rack for modules (
not
the number of dimmers).
Port Settings
Patch by default gives every port on every rack a starting address and sequentially addresses the rest of
the dimmers in the rack from that point. To edit the dimmer’s addressing individually, change to the
Patch tab where all of the patch data is exposed.
By default every rack added will be set to an incremental DMX address starting at one (1) and
continuing with the next available DMX address available with only port A enabled on each rack (Port
B, EDMX and sACN are disabled by default).
You can edit the DMX start address for each rack from the Patch/Port Settings page. You can enable/
disable the data ports here as well.
This is also where you set the data priority and data loss behavior for each port of each rack. Priority is
the preference given to each control source internally to the CEM+ (it is not broadcast to other
ETCNet2 devices, nor does it use the source device’s priority once inside the CEM+) Priorities can be set
for each port of each rack as well as recorded Presets. Data Loss Behavior defines the action to be
performed in the event of data loss for an individual address. This is a port setting but is applied on an
address-by-address basis.
Note:
To output DMX from port B of the last rack BOTH the checkbox for “Enable Port B
Output” and the checkbox to enable port B on the last rack must be checked for this
to work.
Port B DMX Output is only available from the last logical rack in a group, regardless
of its physical position within the group.
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