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Summary of Contents for Resource Data Management Mercury PR0018
- Page 1 PR0018 PR0018-PHI Mercury Switch User Guide Resource Data Management Ltd 80 Johnstone Avenue, Hillington Industrial Estate, Glasgow, Scotland G52 4NZ UK +44(0)141 810 2828 Switchboard support@resourcedm.com Technical Support sales@resourcedm.com Sales Enquiries www.resourcedm.com...
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Page 2: Table Of Contents
Connection to a Data Manager/Director ......................4 10/100 Base T connectors ..........................4 Network ID ................................4 ID for equipment with rotary switches......................4 PR0018-PHI USER GUIDE ..........................5 Front Panel Features (PR0445) ........................5 Setup via Display ............................... 5 Recommended set-up method ......................... 6 Set/View Type .............................. -
Page 3: The Mercury Switch
Description The Mercury Switch (PR0018) is a device that allows up to 10 RDM Mercury controllers to be connected to an IP network, without the need for individual IP Futura modules. There are 10 RS232 connections for linking to 10 Mercury controllers. There are 3 standard Ethernet Switch (10/100baseT) connections for other network devices. -
Page 4: Connection To Mercury Controllers
Mercury Switch User Guide Connection to Mercury Controllers: Using a standard CAT5 patch lead, connect the serial output of the RDM Controller to one of the RS232 ports of the Mercury Switch. RS232 Lead Lengths RS232 patch lead maximum length must not exceed 15 metres. (Ports 1 - 10) The 3-character address that will be seen on the system front end is determined by the position of the two Network ID rotary switches and the port the controller has been connected to, unless the connected controller has its own network ID rotary switches, in which case the controller ID will override the switch settings. -
Page 5: Pr0018-Phi User Guide
PR0018-PHI User Guide The PR0018-PHI hardware version of the Mercury Switch allows for EEV Control on an island by island basis. It also allows for the use of the energy feature Trim Control which pulses the trim relay of a Mercury case controller based on the actual shop floor humidity therefore minimising energy usage. -
Page 6: Recommended Set-Up Method
Network Configuration Unlike the PR0018 (Standard Mercury Switch version) when this product is used with a Data Manager/Data Director it is registered on the system as a device. Once the Mercury Switch is on-line, the Switch type and parameters can be set up. The switch comes online with the ID of the 2 rotary switch settings followed by the letter a. -
Page 7: Ip-L (Local Ip Address)
Mercury Switch User Guide IP-L (Local IP Address) To configure the Mercury Switch for IP-L, set both rotary switches to zero. nEt. From the function menu you can now select nEt Press enter and the display will show “IP-L”, press enter You can now set the address using the table below Display Option... -
Page 8: Parameters
Mercury Switch User Guide Parameters Parameter Range Bar (psi) Step Units Default Bar (Psi) P-01 Refrigerant None (0). R12 (1). R13 (2) None R13b1 (3). R22 (4). R23 (5) R32 (6). R114 (7). R134a (8) R142B (9). R227 (10). R401 (11) R401A (12). -
Page 9: Parameters Description
Mercury Switch User Guide Parameters Description Number Parameter Description P-01 Refrigerant Select the gas type used within the refrigeration system. P-02 Span Total range of transducer. See: To Disable Local Transducer P-03 Offset Value below zero* P-04 Glide Allows the calculated temperature to be offset by subtracting the value at P-04 P-05 Pressure Type Select between Absolute or Gauge pressure... -
Page 10: Input/Output Table
-49.0 to 60 (-56.2 to 140.0) EEV Control Operation Product PR0018-PHI is intended for EEV control on an Island by island basis and can be implemented in two ways. Using the on board 4-20mA Input to measure the suction pressure going to the island. -
Page 11: Mercury Switch Type
Mercury Switch User Guide Operation Once the Switch has been correctly setup, it will pass values to each of the controllers connected to ports 1 through 10. In an EEV application the evaporator in temperature probe reading for a case controller can be obtained from the Mercury Switch on which the controller is connected. -
Page 12: Humidity Control Operation
Mercury Switch User Guide Humidity Control Operation To utilise this feature a Humidity/Temperature Display is required (PR0445). Connect the Humidity/Temperature display to the display port on the Mercury Switch. The control algorithm will use the humidity reading from the display in calculating the percentage at which the trim relays are to be pulsed. -
Page 13: Network Alarms
Mercury Switch User Guide Network Alarms The table below shows the text and associated type number that is sent to the system "front end". The type number is normally used to provide different alarm actions. Alarm text Type # (Index) Transducer Fault High Pressure Alarm MOP Alarm... -
Page 14: Specification
Mercury Switch User Guide Specification Power requirements 100 – 240 Vac ±10% Supply Voltage Range 50 – 60 Hz Supply Frequency Typical Supply Current <500mAmps Maximum Supply Current 650mA General Operating Temperature Range C to +50 Operating Humidity 80% maximum Storage Temperature Range C to +65 Environmental...
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