York YHAU-CE-JE Series, Installation Operation & Maintenance

Page: 44 / 136

JOHNSON CONTROLS
44
FORM 155.33-ICOM2.EN.GB
ISSUE DATE: 12/4/2017
SECTION 3 – HANDLING, STORAGE, INSTALLATION AND REASSEMBLY
User-Created
The diagrams and tables that follow detail some of the
work that must be performed by the customer to be
sure that the communication systems work properly.
LD20597f
FIGURE 14 -
CONNECTION DETAIL FOR D-SUB 9PIN
Serial interface (COM2)
Connect User-Created Cable
ITEM CUSTOMER JCI REMARKS
Control panel with upper
communication function X Communication protocol: Modbus RTU
Wiring work for Modbus RTU
communication X Attach a RS485 communication cable. See
Table 11
on page 45
for more information.
Communication program for central
monitoring unit X See Table 12 on page 47 for the details of
communication protocol, path type, function code,
communication data address, etc.
TABLE 10 - SCOPE OF DELIVERY OF UPPER COMMUNICATION SYSTEM