ProMinent DCM 2 Series, Installation Manual, Page: 28 / 37

DCM 2 Installation
Page 28
Relays 1 to 3 AC Line powered outputs
ON/OFF controls Controller powered outputs switch 120 VAC pumps, valves
& solenoids ON/OFF. Relays are Normally Open only.
Outputs can alarm on runtime per actuation.
Relays 4 and 5 DC switching outputs
Pulsing or ON/OFF
controls DC Contacts, unpowered, up to 24VDC, remote enable, or
Variable speed pulse output feeds. Presets for popular
ProMinent and other pumps (400 strokes/min maximum
rate.)
5.2.
Communications
Ethernet LAN TCP-IP:
The DCM2 controller contains a 10 Base T, RJ45 Ethernet port with a Fixed IP address assigned by the
administrator. Additional parameters adjustable are Netmask, Gateway and Primary DNS. The
controller operates as an HTML micro-server for command & control using most common internet
browsers available on most computers including Apple OS computers and most all mobile internet
enabled devices.
Logged data is served as an XML file in response to an HTML request. This feature makes
configuration easy using common Ethernet network browsers already installed on most computers, and
easily supported by local IT departments.
USB Services
All DCM2 controllers include a USB port which is used for Comma Separated Variable (CSV) formatted
datalogging extraction to a USB flash drive or “thumb drive”.
Data Logging
Each enabled input and output is logged by the controller as a user set interval from 1 to 1440 minutes.
The default rate for all data is 60 minutes with a 24,000 sample log size. Range is 16.6 to 24,000 days.
Default resolution is therefore ~1000 days of information.
24,000 @ 60 minutes = 24,000 hours = 24,000/24 = 1000 days = 2.7 years
24,000 @ 30 minutes = 12,000 hours = 24,000/48 = 500 days = 1.3 years
24,000 @ 10 minutes = 4,000 hours = 24,000/144 = 166 days = 5.5 months
24,000 @ 5 minutes = 2,000 hours = 24,000/288 = 83 days = 2.7 months
5.3. Control Configuration
5.3.1. Control Method
Relays 1 to 5 ON/OFF Controls
When in On/Off control mode (no special control selected), the deadband or hysteresis is the difference
between the “Turn ON Setpoint” and the feeder “Turn OFF” point. This applies to relays, controlled by
sensors A, B and C. Not applicable to relays controlled by flow meters or contact set F.
Method Function Examples
Rising Setpoint
[Feed Down]
ON: Sensor > Turn ON Setpoint
OFF: Sensor < Turn OFF Setpoint Acid Feed
Falling Setpoint
[Feed Up]
ON: Sensor < Turn ON Setpoint
OFF: Sensor > Turn OFF Setpoint Oxidant Feed
Caustic Feed
Between Setpoints
[Not normally used in pools
and spas] ON: Sensor < Turn ON Setpoint
& Sensor > Turn OFF Setpoint
OFF: Sensor > Turn ON Setpoint Blocking Controls or
Level Controls