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Simplicity 514067-UAD-A-0509 - page 1
514067-UAD-A- 0509 APPLICATION GUIDE OVERVIEW The Simplicity ® LINC Gateway operates as a Modbus® Client providing an interface between a BACnet® MS/TP control system and devices that communicate using the Modbus RTU protocol. The Simplicity ® LINC allows monitoring and cont rol by a third-party BACnet Building Automation System (BAS). The Simp ...
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Simplicity 514067-UAD-A-0509 - page 2
514067-UAD -A-0509 2 Johnson Controls Unitary Products CONNECTION The Simplicity ® LINC has 2 ports, one fo r connection to the BAS network (BACnet) and one to the Simplicity ® board (Modbus). BACNET NETWORK The only connection required in the field is to the BACnet (BAS) network. NOTE: Proper termination and groun ding of the shields must be obs ...
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Simplicity 514067-UAD-A-0509 - page 3
514067-UAD-A-0509 Johnson Controls Unitary Products 3 FLASH MEMORY MANAGEMENT The Flash Memory chip used in the Simp licity ® controllers has a 1,000,000 write cycle rating. To prevent premature failure of the flash memory, it should not be written to more often than once every 10 minutes, on average. ADDITIONAL CAPABILITY MODBUS COMMUNICATION ALA ...
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Simplicity 514067-UAD-A-0509 - page 4
514067-UAD -A-0509 4 Johnson Controls Unitary Products TABLE 2: POINTS LIST IN DESCRIPTION ORDER Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R (2) A V 14 ACC_OVER_TME – – – Accumulated Unoccupied Override T ime (in hours) R (2) A V 15 ACTIVE_ALARM – – – Active Alarm R (5) BV 16 AIR_PRO ...
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Simplicity 514067-UAD-A-0509 - page 5
514067-UAD-A-0509 Johnson Controls Unitary Products 5 TABLE 2: POINTS LIST IN DESCRIPTION ORDER (CONTINUED) Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R/W (2) A V 20 ECO_1ST_STPT 55 40 65 Economizer First Stage Setpoint R (5) BV 7 ECONO_INST – – – Economizer Installed R (5) BV 36 ECO_L_TO_S ...
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Simplicity 514067-UAD-A-0509 - page 6
514067-UAD -A-0509 6 Johnson Controls Unitary Products TABLE 2: POINTS LIST IN DESCRIPTION ORDER (CONTINUED) Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R (5) BV 44 E_HPS1 – – – Elite High Pressure Switch for Compressor #1 Input Status (1=closed, 0=open/fault) R (5) BV 48 E_HPS2 – – – ...
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Simplicity 514067-UAD-A-0509 - page 7
514067-UAD-A-0509 Johnson Controls Unitary Products 7 TABLE 2: POINTS LIST IN DESCRIPTION ORDER (CONTINUED) Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R (5) BV 66 E_FREEZE_ST – – – Hot H2O Freeze Thermostat Switch #1 Input Status (1=closed, 0=open/fault) R (2) A V 55 HW_VL V_OUT – – – ...
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Simplicity 514067-UAD-A-0509 - page 8
514067-UAD -A-0509 8 Johnson Controls Unitary Products TABLE 2: POINTS LIST IN DESCRIPTION ORDER (CONTINUED) Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R (5) BV 14 LOW_SUP_VOL T – – – Low Supply V oltage (0=comps not overrid- den by LSV , 1=comps overridden) R/W (5) BV 96 MANUAL_WRITE – ? ...
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Simplicity 514067-UAD-A-0509 - page 9
514067-UAD-A-0509 Johnson Controls Unitary Products 9 TABLE 2: POINTS LIST IN DESCRIPTION ORDER (CONTINUED) Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R/W (2) A V 71 SPCE_ALM_TMP 0 0 25 Space Sensor Alarm T emperature (degrees F , 0 = disabled) R/W (2) A V 72 SPCE_ALM_TIM 0 0 120 Space Sensor Ala ...
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Simplicity 514067-UAD-A-0509 - page 10
514067-UAD -A-0509 10 Johnson Controls Unitary Products TABLE 3: POINTS LIST IN OBJECT ORDER Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R/W (2) A V 1 OCC_COOL_SP 72 45 99 Occupied Cooling Setpoint R/W (2) A V 2 UNOC_COOL_SP 85 45 99 Un-Occupied Cooling Setpoint R/W (2) A V 3 SA T_COOL_SP 50 40 65 ...
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Simplicity 514067-UAD-A-0509 - page 11
514067-UAD-A-0509 Johnson Controls Unitary Products 11 TABLE 3: POINTS LIST IN OBJECT ORDER (CONTINUED) Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R (2) A V 38 ALARM_3 – – – System Alarm #3 R (2) A V 39 ALARM_4 – – – System Alarm #4 R (2) A V 40 ALARM_5 – – – System Alarm #5 R ( ...
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Simplicity 514067-UAD-A-0509 - page 12
514067-UAD -A-0509 12 Johnson Controls Unitary Products TABLE 3: POINTS LIST IN OBJECT ORDER (CONTINUED) Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R/W (2) A V 69 OP_STPT_DIF 1 1 5 Operating Setpoint Differential R/W (2) A V 70 SA T_ALM_COOL 0 0 80 Supply Air T emperature Alarm Setpoint for Cooli ...
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Simplicity 514067-UAD-A-0509 - page 13
514067-UAD-A-0509 Johnson Controls Unitary Products 13 TABLE 3: POINTS LIST IN OBJECT ORDER (CONTINUED) Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R (5) BV 19 LOW_AMB_OVRD – – – Low Ambient T emperature (0=comps not overridden by LA T , 1=comps overridden) R (5) BV 20 POP_ENABLED – – ? ...
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Simplicity 514067-UAD-A-0509 - page 14
514067-UAD -A-0509 14 Johnson Controls Unitary Products TABLE 3: POINTS LIST IN OBJECT ORDER (CONTINUED) Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R (5) BV 47 E_LPS2 – – – Elite Low Pressure Switch for Compressor #2 Input Status (1=closed, 0=open/fault) R (5) BV 48 E_HPS2 – – – Elite ...
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Simplicity 514067-UAD-A-0509 - page 15
514067-UAD-A-0509 Johnson Controls Unitary Products 15 TABLE 3: POINTS LIST IN OBJECT ORDER (CONTINUED) Read/ Write BACnet Object T ype BACnet Object Inst Descriptor Default Min Max Point Description R (5) BV 71 I_IF AN_ST A T – – – Intelli-Comfort Indoor Fan Output Status (0=output is OFF , 1=output is ON) R (5) BV 72 I_F AN_OVER – – – ...
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Simplicity 514067-UAD-A-0509 - page 16
514067-UAD -A-0509 16 Johnson Controls Unitary Products TROUBLESHOOTING The Simplicity ® LINC Gateway consists of two printed circuit boards. TABLE 4: SIMPLICITY ® LINC GATEWAY RS485 BOARD (Bottom) BacNET Board (Top) Normal Board Op eration Normal Board Op eration The PWR LED should be on during operation. The RX and T X LEDs should flash when a ...
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Simplicity 514067-UAD-A-0509 - page 17
514067-UAD-A-0509 Johnson Controls Unitary Products 17 FIGURE 3: SIMPLICITY ® LINC GATEWAY LED LOCATION PWR (RS485) PWR (BACnet) GP105 (BACnet) LB (BACnet) RX (RS485) TX (RS485) LA (BACnet) TX (BACnet) RX (BACnet) ...
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Simplicity 514067-UAD-A-0509 - page 18
Subject to change without notice. Print ed in U.S.A. 514067-UAD-A-0509 Copyright © 2009 by Johnson Controls, Inc. Al l rights reserved. Supersedes: Nothing Johnson Contro ls Unitary Products 5005 York Drive Norman, OK 73069 ...
