Daikin EUWAB10KBZW1, Service Manual

Page: 125 / 210

ESIE11-02 The Digital Controller
Part 2 – Functional Description 2–39
3
2
4
5
1
2.8 Option EKAC10C Address Card
Overview
Remark
■
Modbus communication RS485/RTU only
■
Modbus communication RS485 and remote user interface is not possible at the same time
■
No BACnet possibility
■
The RS485 communication settings for Modbus protocol are:
■
baudrate: 9600
■
stop bit: 2
■
parity: none
Controller settings Following parameters have to be programmed to activate Modbus communication:
■
H23: select 1 to enable
M
odbus communication
■
H10: select serial address of the chiller
1
2
3
2
24
31
56
75
5
5
85
+
+
2x 0.35 mm
2
/ AWG 22
120 Ω
(1/4 W 120 Ohm)
1
EKAC10C EKAC10C EKAC10C
GND T+ T–
h10
= 1
h10
= n
120 Ω
BMS
GND
T+
T–
1..
EKAC10C
...n
EKAC10C
GND
T+
T–
3
EKAC10C
+
BMS
EKAC10C
+
EKRUMCA