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Johnson Controls Metasys NCE25 series Installation Instructions Manual Download Page 8

Standard USB port

A network engine updated to Release 9.0.7, does not support modem functionality through

the USB port. However, for a network engine with vendor integrations, you can configure the

vendor integration to use an external flash drive connected to the USB port to capture diagnostic

information when the engine is in diagnostic mode.

Ethernet port

The Ethernet port, labeled ETHERNET, is an 8-pin RJ-45 network port for connecting the network

engine to Ethernet networks (10 or 100 Mbps). For a network engine configured for vendor

integrations, use this port for connecting a Modbus TCP, M-Bus TCP, or KNX network.

Internal modem

Modem functionality for NCE25 models that feature an internal modem is removed supported

when you update the NCE25 with Release 9.0.7. If your application requires a modem, image the

engine with Release 9.0.

Wiring rules for networks and field buses

All NCE25 Series models are designed to connect to Ethernet IP networks and support a single SA

Bus.
A network engine also supports an MS/TP field bus trunk, an N2 Bus trunk, and up to two vendor

integrations. For example, an NCE support two Modbus, two M-bus, or one of each. If a KNX

integration is required, an NCE25 supports only one KNX IP Integration.

IP Ethernet network rules

All NCE25 models are designed to connect to properly configured IP Ethernet networks. Observe

the IP Ethernet network rules in the following table.

Note: 

You can find the Media Access Control (MAC) address on a label on the network engine

housing.

Table 2: Ethernet network rules

Category

Rules/maximums allowed

General

Star topology with network hubs/switches.

Number of devices

Maximum number of supervisory devices that you can connect to

one site in the 

Metasys

 system depends on the 

Metasys

 server. For

details, refer to 

Metasys System Configuration Guide (LIT-12011832)

.

2,000 m (6,561 ft) for plastic/glass fiber optic with external adapter.

Line length and type

100 m (328 ft) CAT5 cable.

Terminations

For 10/100 BaseT, no line terminators allowed.

MS/TP FC Bus rules

The MS/TP FC Bus connects FECs, VMA1600s, IOMs, TEC Series thermostats, and third-party MS/TP

controllers to NCE256x models.
NCE256x models support an FC Bus trunk with up to 32 MS/TP devices. Observe the rules in the

following table when designing and installing the connected FC Bus.

NCE25 Installation Instructions

8

Summary of Contents for Metasys NCE25 series

Page 1: ...hows the physical features of an MS NCE2567 0 model See Table 18 for NCE25 Series model information and features Important For existing custom integrations contact your local Systems Integration Services SIS team before an upgrade Updated drivers can be provided on request Installation Follow these guidelines when installing an NCE Transport the NCE in the original container to minimize vibration ...

Page 2: ...engine housing ventilation holes Do not mount a power transformer below the network engine On applications where the network engine is mounted inside a panel or enclosure follow these additional guidelines Do not install the network engine in an airtight enclosure Do not install heat generating devices in the enclosure with the network engine that may cause the ambient temperature to exceed 50 C 1...

Page 3: ...crews Important Do not overtighten the mounting screws Overtightening the screws may damage the mounting clips or NCE housing DIN rail mount applications To mount the network engine on a DIN rail 1 Securely mount a 20 cm 8 in or longer section of DIN rail horizontally and centered in the required space 2 Pull out the two mounting clips and snap them firmly See Figure 2 3 NCE25 Installation Instruc...

Page 4: ...ips up to secure the network engine on the DIN rail tracks To remove the network engine from the DIN rail snap the bottom DIN clips to the outward extended position and carefully lift the network engine off the DIN rail Enclosure mount applications Mount the enclosure in accordance with the manufacturer s instructions and then mount the network engine in the enclosure following the guidelines in t...

Page 5: ...d output wiring guidelines 3 6 Pin modular Bus ports FC Bus port for MS TP models only connects to a Wireless Commissioning Converter MS BTCVT 1 SA Bus port connects to a NS network sensor a DIS1710 Local Controller Display or a Wireless Commissioning Converter MS BTCVT 1 4 Data protection battery component 5 NCE reset switch 6 24 VAC Class 2 supply power terminal block is located on the top side ...

Page 6: ...s this can cause a removable terminal plug being plugged into the wrong terminal block which can cause the network engine to malfunction The NCE25 supports Modbus M Bus and KNX integrations when upgraded to Release 9 0 7 24 supply power terminal block The 24 supply power terminal block is a gray keyed removable 3 terminal block located on the top side of all NCE models See Figure 3 Figure 11 and F...

Page 7: ... applications that use shielded cable LonWorks network terminal block Note LonWorks is no longer supported for an NCE at Release 9 0 7 All NCEs that feature the LonWorks integration remain at Release 9 0 or earlier The blue keyed removable 3 position LON terminal block connects a LonWorks network trunk to NCE25 models that support a LonWorks network trunk The Shield SHD on the LON terminal block i...

Page 8: ... two vendor integrations For example an NCE support two Modbus two M bus or one of each If a KNX integration is required an NCE25 supports only one KNX IP Integration IP Ethernet network rules All NCE25 models are designed to connect to properly configured IP Ethernet networks Observe the IP Ethernet network rules in the following table Note You can find the Media Access Control MAC address on a l...

Page 9: ...EOL switch must be set to On or an EOL terminator installed on the two devices located at either end of each bus segment on an FC Bus The EOL switches must be set to Off or EOL termination disabled for all other devices on the bus segment on an FC Bus See Setting the end of line switch for information on setting the EOL switch SA Bus rules The SA Bus connects the Metasys Input Output Modules IOMs ...

Page 10: ...y require EOL termination at the last device on the SA Bus in addition to the integral EOL termination at the SA Bus supervisor All NCE25 models are SA Bus supervisors N2 Bus rules The N2 Bus connects N2 controllers to specified NCE25 models NCE251x models support a single N2 Bus trunk with up to 32 N2 devices Observe the rules in the following table when designing and installing the connected N2 ...

Page 11: ...RS232C port supports one Modbus RTU RS 232 device RS232C port with RS 232 RS 485 converter supports up to 32 Modbus RS 485 devices Cable Length RS 232 cable length can be up to 15 m 49 2 ft RS 485 cable length can be up to 1 520 m 4 987 ft Cable RS 232 stranded cable 3 9 conductors serial data grade 20 24 AWG RS 485 stranded cable 0 6 mm 22 AWG 3 wire twisted shielded cable is recommended Stranded...

Page 12: ...pology is strongly recommended Number of devices Depends on level converter logical maximum is 250 devices Length depends on cable resistance capacitance number of devices position of devices and configured communication speed Example scenarios to help with calculation Baud rate Maximum number of unit loads Maximum distance between converter and devices Maximum distance for entire Bus 64 3 000 m 9...

Page 13: ...osen topology and cable type Line length and type Twisted pair cable recommended length depends on cable resistance capacitance number devices position of devices and communication speed Cable Copper solid and stranded wires with outer sheath one or two twisted pair 0 8 mm to 1 0 mm 20 to 18 AWG Screen is required and must cover the entire diameter Drain wire Diameter minimum 0 4 mm 26 AWG Termina...

Page 14: ...ions rules and guidelines in the Power supply network and communication connections section in this document Mount the network engine securely before wiring Follow these guidelines when wiring a network engine Route the supply power wires and communication cables at least 50 mm 2 in away from the vent slots on the sides of the network engine housing Provide slack in the wires and cables Keep cable...

Page 15: ...nect this to the converter s CG2 terminal Figure 5 Connection between converter and device 5 To add additional vendor devices terminate the wires from one device to the next as shown in Figure 6 There must be no more than two wire connected to each terminal to ensure the daisy chain configuration is used Figure 6 Daisy Chained Devices Note Ensure the completed wiring looks similar to the following...

Page 16: ...he hot and common wires as you need The network engine does not require an earth ground connection Note The 24 VAC power should be terminated to all network devices so transformer phasing is uniform across the devices Powering network devices with uniform 24 VAC supply power phasing reduces noise interference and ground loop problems Wiring for serial M Bus Protocol 1 Connect the Ethernet cable to...

Page 17: ...not manufactured by Johnson Controls Follow the transformer manufacturer s instructions and the project installation drawings 5 Connect the 24 VAC supply power wires from the transformer to the and terminals as shown in Figure 9 Figure 9 M Bus Level Converter Wiring for KNX Protocol 1 Connect an Ethernet cable to the RJ 45 8 pin Ethernet port shown in NCE25 physical features 2 Connect another Ethe...

Page 18: ...te See Wiring rules for networks and field buses 4 Wire each KNX gateway to its own dedicated power supply on the KNX line Wiring input and output terminals NCE25 Series models support up to 33 hard wired I O points including 7 BO points 4 CO points 4 AO points 8 BI points 10 UI points See Figure 11 Figure 12 and Table 12 for more information I O points are compatible with multiple types of input ...

Page 19: ...s 3 Back of NCE Flush to mounting surface 4 Analog outputs can be defined as Voltage Analog outputs 0 10 VDC Current Analog outputs 4 20 mA 5 24 VAC Class 2 supply power terminal block The center terminal is not used 6 Configurable outputs can be defined as the following Voltage Analog outputs 0 10 VDC Binary outputs 24 VAC Triac 7 Front of NCE 8 Binary output Four jumpers positioned for an extern...

Page 20: ...guidelines Input and output wiring guidelines Table 12 provides information and guidelines about the functions ratings and requirements for the NCE input and output terminals and references to guidelines for determining proper wire sizes and cable lengths In addition to the wiring guidelines in Table 12 observe these guidelines when wiring inputs and outputs Run all low voltage wiring and cables s...

Page 21: ... Guideline B in Table 13 Analog Input Resistive Mode 0 600k Ohms Internal 12 V 15k Ohms pull up Qualified Sensors 0 2k potentiometer RTD 1k Nickel Johnson Controls sensor 1k Platinum and A99B Silicon Temperature Sensor NTC Sensor 10k Type L 10k JCI Type II 2 252k Type II See Guideline A in Table 13 INn Binary Input Dry Contact Maintained Mode1 second minimum pulse width Internal 12 V 15k Ohms pull...

Page 22: ...inals share a common which is isolated from all other commons except the CO common OCOMn when the CO is defined as an AO ANALOG Outputs OUTn Analog Output Voltage Mode 0 10 VDC 10 VDC maximum output voltage 10 mA maximum output current Requires an external load of 1 000 Ohms or more Note The AO operates in Voltage Mode when connected to devices with impedances greater than 1 000 Ohms Devices that ...

Page 23: ...nalog OUT terminals Note All Analog OCOMn terminals share a common which is isolated from all other commons Same as Analog OUTn OUTn Binary Output 24 VAC Triac External Power Connects OUTn to OCOMn when activated External Power Source 30 VAC maximum output voltage 0 5 A maximum output current 1 3 A at 25 duty cycle Maximum 6 cycles hour with M9220 BGx 3 40 mA minimum load current BINARY Outputs Po...

Page 24: ... A maximum output current 1 3 A at 25 duty cycle Maximum 6 cycles hour with M9220 BGx 3 40 mA minimum load current See Guideline C in Table 13 Analog Output Voltage Mode 0 10 VDC 10 VDC maximum output voltage 10 mA maximum output current Requires an external load of 1000 Ohms or more See Guideline A in Table 13 CONFIGURABLE Outputs OUTn Binary Output 24 VAC Triac Connects OUT to OCOM when activate...

Page 25: ...e and type Maximum cable length and type Assumptions 1 0 mm 18 AWG stranded copper 457 m 1 500 ft twisted wire 0 8 mm 20 AWG stranded copper 297 m 975 ft twisted wire 0 6 mm 22 AWG stranded copper 183 m 600 ft twisted wire A 0 5 mm 24 AWG stranded copper 107 m 350 ft twisted wire 100 mV maximum voltage drop Depending on the cable length and the connected input or output device you may have to defi...

Page 26: ...igure 13 to estimate the maximum cable length relative to the wire size and the load current in mA when wiring inputs and outputs Figure 13 Maximum wire length by current and wire size Communications Bus and supply terminal blocks functions ratings requirements and cables Table 14 Communications bus and supply terminal blocks functions ratings requirements and cables Terminal block port label Term...

Page 27: ...Port 6 Position Modular Connector provides SA Bus Communications SA Bus Signal References and 15 VDC Common 15 VDC Power for devices on the SA Bus and Wireless Commissioning Converter 24 AWG 3 pair CAT 3 Cable 30 5 m 100 ft HOT 24 VAC Power Supply Hot Supplies 20 30 VAC Normal 24 VAC 24 COM 24 VAC Power Supply Common Isolated from all other Common terminals on controller 0 8 mm to 1 5 mm 20 to 16 ...

Page 28: ...work engine is disconnected from 24 VAC power for over 30 days ensure that the real time clock is set properly and that the network engine and there is enough power to recharge the data protection battery Powering on the network engine After applying 24 VAC power the network engine requires approximately five minutes to become operational See LED Test Sequence at Startup Startup is complete and th...

Page 29: ...h setting relative to NCE position on the N2 Bus or FC bus segment Setting the network and device addresses You must assign a new IP network address to the NCE25 so it can communicate on the IP Ethernet network The network engine MAC address on a label on the housing The network engine is always the SA Bus supervisor and therefore always has a fixed device address of 0 on the SA Bus The supervisor...

Page 30: ...cting external power to a BO that sources internal power can damage the controller and void any warranties Display screen and display navigation keypad Specified NCE25 models feature an integral display screen and display navigation keypad Use these features to can view and edit the I O points settings on the network engine See Figure 3 Refer to the DIS1710 Local Controller Display Technical Bulle...

Page 31: ... excessive CPU flash or memory use excessive board temperature Blink 2 Hz Download or Startup in progress not ready for normal operation Blink Rapidly 5 Hz One or more defined SA Bus devices are offline Check SA Bus devices for problems including low batteries on wireless sensor SA BUS Green Blinking Blinking 5 Hz Data Transmission normal communication Off Steady No Data Transmission On Steady Com...

Page 32: ...s LED indicates regular heartbeat communications with the Site Director For a single NCE or NIE on a network without an ADS there is no flicker Accessories Table 16 NCE25 Accessories Ordering Information Product Code Number Description MS BAT1020 0 Replacement data protection battery for the NCE25 Rechargeable NiMH battery 3 6 V 500 mAh with a typical life of five to seven years at 21 C 70 F TL MA...

Page 33: ... use To obtain a license attend the training listed in the following table Table 17 VGE Tool Training Registration Product Code Number Description C 10077 The VGE Tool Software Training North America The VGE tool is required to generate custom Modbus mapping tables PTK CONT 25 The VGE Tool Software Training Europe and Asia The VGE tool is required to generate custom Modbus mapping tables Repair in...

Page 34: ...party trunk depends on the protocol For the N2 Bus up to 32 devices are supported Includes internal modem MS NCE2516 0 9 0 7 Supports two third party trunks Modbus RTU or TCP M Bus or KNX and one N2 Bus The number of supported devices on the third party trunk depends on the protocol For the N2 Bus up to 32 devices are supported Includes integral display screen MS NCE2517 0 9 0 Supports two third p...

Page 35: ...Europe at 50 60 Hz 20 VAC minimum to 30 VAC maximum Power Consumption 25 VA maximum for NCE25 only Note The 25 VA rating does not include any power supplied by the NCE to devices connected at the NCE BOs BO devices connected to and powered by an NCE can require an additional 125 VA maximum Power Source 15 VDC power source terminals provide 100 mA total current quantity of inputs five located in Un...

Page 36: ... user supplied external modem Modem functions are available with Metasys Release 9 0 but are not available after the NCE is updated with Release 9 0 7 Option One telephone port for the internal modem up to 56 Kbps 6 pin modular connector NCE models with an optional internal modem have one RS 232 C serial port only not supported for an engine with Release 9 0 7 Analog Input Analog Output Point Reso...

Page 37: ...ng from misapplication or misuse of its products Points of Single Contact APAC Europe NA SA JOHNSON CONTROLS C O CONTROLS PRODUCT MANAGEMENT NO 32 CHANGJIJANG RD NEW DISTRICT WUXI JIANGSU PROVINCE 214028 CHINA JOHNSON CONTROLS WESTENDHOF 3 45143 ESSEN GERMANY JOHNSON CONTROLS 507 E MICHIGAN ST MILWAUKEE WI 53202 USA North American Emissions Compliance United States This equipment has been tested a...

Page 38: ...ulations Cet appareil numérique de la Classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada 2019 Johnson Controls All rights reserved All specifications and other information shown were current as of document revision and are subject to change without notice www johnsoncontrols com ...

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