bacrp(1)

NAME
bacrp - send BACnet ReadProperty service request to BACnet devices

SYNOPSIS
bacrp device-instance object-type object-instance property [index]

DESCRIPTION
bacrp uses the BACnet ReadProperty service request to elicit a ReadPropertyAck or BACnet Error service response from a BACnet device on the network. WhoIs and I-Am are used for device binding. The property value or error message is returned to stdio.

OPTIONS

device-instance
    Device object instance number that you are trying to send a ReadProperty service request. The value should be in the range of 0 to 4194303.

object-type
    The object type is the integer value of the enumeration BACNET_OBJECT_TYPE in bacenum.h. It is the object that you are reading. For example if you were reading Analog Output 2, the object-type would be 1.

object-instance
    This is the object instance number of the object that you are reading. For example, if you were reading Analog Output 2, the object-instance would be 2.

property
    The property is an integer value of the enumeration BACNET_PROPERTY_ID in bacenum.h. It is the property you are reading. For example, if you were reading the Present Value property, use 85 as the property.

index
    This integer parameter is the index number of an array. If the property is a BACnetARRAY, individual elements can be read. If this parameter is missing and the property is an array, the entire array will be read.

EXAMPLES
If you want read the Present-Value of Analog Output 101 in Device 123, you could send the following command: $ bacrp 123 1 101 85 If you want read the Priority-Array of Analog Output 101 in Device 123, you could send the following command: $ bacrp 123 1 101 87 If you want read the length of Priority-Array of Analog Output 101 in Device 123, you could send the following command: $ bacrp 123 1 101 87 0

FILES
address_cache
    A cache that is read for static binding. See address_cache(5) for further details.

ENVIRONMENT

BACNET_IP_PORT
    If non-null, the number of the UDP port for BACnet/IP datalink. The default UDP port number is 47808 (0xBAC0).

BACNET_IFACE
    If non-null, the device name for the datalink. The default is "eth0".

BACNET_BBMD_PORT
    If non-null, the number of the UDP port that the BBMD is using. The default UDP port number is 47808 (0xBAC0). Used for BACnet/IP datalink only.

BACNET_BBMD_TIMETOLIVE
    If non-null, the number of seconds used in the Foreign Device Registration. A 16-bit unsigned value of 0 to 65535 is expected. The default number of seconds is 65535 (0xFFFF). Used for BACnet/IP datalink only.

BACNET_BBMD_ADDRESS
    If non-null, the IP address of the BBMD that is handling the Foreign Device Registration. If this environment variable is missing or NULL, then Foreign Device Registration does not occur. Used for BACnet/IP datalink only.

BACNET_MAX_INFO_FRAMES
    If non-null, the Max-Info-Frames value between 1 and 255. The default number of frames is 1. Used for BACnet MS/TP datalink only.

BACNET_MAX_MASTER
    If non-null, the Max-Master value between 1 and 127. The default Max-Master is 127. Used for BACnet MS/TP datalink only.

BACNET_MSTP_BAUD
    If non-null, a value baud rate of 9600, 19200, 38400, 57600, and 115200. The default baud rate is 9600. Used for BACnet MS/TP datalink only.

BACNET_MSTP_MAC
    If non-null, the MS/TP MAC address value between 0 and 127. The default MAC address is 0. Used for BACnet MS/TP datalink only.

DIAGNOSTICS
The following diagnostics may be issued on stderr: device-instance=x - it must be less than 4194304 object-type=x - it must be less than 1024 object-instance=x - it must be less than 4194304 property=x - it must be less than 4194304 Error: TSM Timeout! Error: APDU Timeout!

BUGS
No bugs are known to exist at this time.

AUTHOR
Steve Karg <skarg@users.sourceforge.net>

SEE ALSO
bacarf(1), bacawf(1), bacdcc(1), bacepics(1), bacrd(1), bacserv(1), bacts(1), bacucov(1), bacwh(1), bacwp(1), address_cache(5)