SECTION 4 - TECHNICAL DATA
FORM 155.32-ICOM2.EN.UL
ISSUE DATE:1/10/2018
76
JOHNSON CONTROLS
UPPER COMMUNICATION SPECIFICATION
The information in this section applies to the CGN/H Series of direct fired absorption chiller-
heaters.
Upper Communication System Configuration
The configuration of the upper communication system is shown below.
Figure 34 -
Upper Communication System Configuration
Scope of Delivery
Johnson Controls scope of delivery for the upper communication system covers the control
panels for the upper communication function. The customer is responsible to deliver all
other related equipment: concentrator (HUB), installation, wiring, communication program
for the central monitoring unit. See table below.
Table 21 -
Scope of Delivery
ITEM
CUSTOMER
JCI
REMARKS
Control panel with upper
communication function
X
Communication protocol: Modbus TCP
Data concentrator (HUB)
X
Installation and wiring are included
Wiring work for Ethernet
connection
X
Apply twisted pair cable
Communication program
for central monitoring
unit
X
See the following tables for the details of the IP
address, function code, communication data
address and other pertinent communication
details.
LD20594a
Central Monitoring Unit
Data Concentrator (HUB)
Scope of Delivery
by Customer
Scope of Delivery by
Johnson Controls
Absorption Chiller Heater Control Panel
