JOHNSON CONTROLS
292
FORM 201.23-NM2
ISSUE DATE: 09/25/2020
SECTION 8 - MICROPANEL
TABLE 29 -
MINIMUM, MAXIMUM AND DEFAULT VALUES
DESCRIPTION
MINIMUM
MAXIMUM
DEFAULT
DE MODIFIER ADDRESS
-1
41943
-1
DE MODIFIER OFFSET
-1
99
-1
P1 BAUD RATE
1200
76800
4800
1200, 4800, 9600, 19200, 38400, 76800, AUTO SELECTABLE
P2 BAUD RATE
1200
57600
1200
1200, 4800, 9600, 19200, 38400, 57600 SELECTABLE
P1, P2 MANUAL Mac AD-
DRESS
-1
127
-1
P1, P2 PARITY
NONE
IGNORE
NONE
NONE, EVEN, ODD, IGNORE SELECTABLE
P1 PROTOCOL
BACNET
API
BACNET
BACNET, API SELECTABLE
P2 PROTOCOL
TERMINAL
MODBUS CLIENT
API
TERMINAL, MODBUS IO, MODBUS SERVER, API, MODBUS CLIENT SELECTABLE
P1, P2 STOP BITS
1
2
1
RESET REAL TIME ERROR
NO
YES
NO
The Chiller Control Board contains a dual UART for
RS-485 and RS-232 communications. UART1 is dedi-
cated to RCC and ISN communications over an RS-
485 link. UART2 is dedicated to internal communica-
tions within the chiller. The RS-485 port is configured
for 4800 baud, 1 start bit, 8 data bits, odd parity, and 1
stop bit.
Connections for ISN communications are on the Chiller
Control Board on TB1/TB2. TB2 on the Microgateway
is utilized for ISN comms connection. P3 is RS485+,
P2 is RS485-, and USHL is the shield.
The table below shows the minimum, maximum, and
default values.
FIGURE 61 -
CONTROL BOARD CONNECTIONS
LD10637
Содержание YCIV Series
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