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Chapter 4 - Parameters and Menu Structure
I/O and Hardware (M5)
155 | 180
Siemens Industry, Inc.
Siemens BT300 HVAC Drive
DPD01809
Building Technologies
2016-06-07
Code
Parameter
Min
Max
Unit
Default
ID
Description
P5.9.2.2.1.5
Illegal data values
0
2464
See
Illegal data values
(P5.9.2.2.1.5).
P5.9.2.2.1.6
Slave device busy
0
2465
See
Slave device busy
(P5.9.2.2.1.6).
P5.9.2.2.1.7
Memory parity error
0
2466
See
Memory parity error
(P5.9.2.2.1.7).
P5.9.2.2.1.8
Slave device failure
0
2467
See
Slave device failure
(P5.9.2.2.1.8).
P5.9.2.2.1.9
Last fault response
0
2468
See
Last fault response
(P5.9.2.2.1.9).
P5.9.2.2.1.10
Control word
hex
2469
See
Control Word Bits.
P5.9.2.2.1.11
Status word
hex
2470
See
Status Word Bits.
MONITORING VALUES (Connection 3, Monitoring)*
M5.9.2.2.1.1
Fieldbus protocol status
1
3
2471
1 = Stopped
2 = Operational
3 = Faulted
M5.9.2.2.1.2
Communication status
0.0
99.999
0.0
2472
0-99 Number of messages with
errors.
0-999 Number of messages
without communication errors.
M5.9.2.2.1.3
Illegal functions
0
2473
See
M5.9.2.2.1.4
Illegal data addresses
0
2474
See
*Only displays after a connection has been established.
Modbus TCP Settings
Common Settings
Connection limit (P5.9.2.1.1)
Defines how many clients can access the server simultaneously.
Unit identifier number (P5.9.2.1.2)
The Modbus slave address field usually used on Modbus Serial Line is replaced by a single byte Unit Identifier.
On TCP/IP, the Modbus server is addressed using its IP address; therefore, the Modbus Unit Identifier is not used.
Communication time out number (P5.9.2.1.3)
Modbus initiates a communication error if the Ethernet connection is lost. Communication time-out parameters
define the minimum delay between packages received from the client. The timer is reset and started after each
received package. This parameter can be used if the client is periodically polling the slaves.
Modbus TCP Monitoring Values
These values only display after a connection has been established.
Connection 1
Fieldbus protocol status (P5.9.2.2.1.1)
The Fieldbus Protocol Status provides the status of the protocol.
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