NOVUS V1.5x A - Manual (Page 85)

NOVUS AUTOMATION www.fieldlogger.net 85/103
 X = 1: First channel enabled.
 X = 2: Second channel enabled.
 etc.
o Y = Channel information:
 Y = 1: Channel tag. [OCTET STRING]
 Y = 2: Channel read value. Wherever appropriate (virtual and analog channels, for example),
it will be multiplied by the number of decimal places configured by the user. [INTEGER]
 Y = 3: Channel unit. [OCTET STRING]
 Y = 4: Channel type indication (analog, digital, etc.), and the channel number related to this
type. Examples: ANALOG_001, DIGITAL_005, REMOTE_014, VIRTUAL_103. [OCTET
STRING]
 Y = 5: Channel error indication (0 = channel ok; 1 = channel in error state). [INTEGER]
 Y = 6: Indicates that the channel is enabled (value = 1) or disabled (value = 0) for logging.
[INTEGER]
Traps
Traps will be generated if enabled and if selected in the alarms in order to warn about their occurrence. The address and
port of destination are configurable.
They have the following fields:
•
Community: “FieldLogger”.
•
OID: .1.3.6.1.4.1.34590.1.100 (where 34590 is the "enterprise number" used and the 1 following is the branch of
FieldLogger)
•
General number: 6 (indicating that the trap is “enterprise-specific").
•
Specific number: Index for the occurred alarm (zero - based).
•
Trap value
o OID: .1.3.6.1.4.1.34590.1.100.XX, where XX is the index of the occurred alarm.
o Type: OCTET STRING.
o Value: String indicating the occurred alarm in the format: TAG + CONDITION + VALUE. Example :
“Channel_1 > 129.43”
CLOUD
From firmware version 1.40 on, FieldLogger can connect to a remote server, in order to make its data available through
the cloud (Internet).
The use of remote access requires an Internet connectivity service!
NOVUS offers a remote server option. Search the website for the specific service documentation.
If using another connectivity service, see the section “Authorization and Other Details” for the connection
details for the configuration and acceptance of FieldLogger in the remote server.
OPERATION
Once connected, it waits the receipt of Modbus commands using the remote server. Upon receiving these commands, it
checks the need to forward them to possible slaves of the RS485/Modbus RTU network that are connected to it and
sends the received answer from the slave back to the server.
AirGate-GPRS constantly monitors the state of the connection. Once it perceives a disconnect with the cellular network
or with the remote server, it immediately attempts to reconnect, in order to always keep the path open for new remote
requests and to the sending of SMS messages of alarm or status notification.
AUTHENTICATION AND OTHER DETAILS
FieldLogger will connect with the IP and the configured gates. If, instead of an IP, a URL was configured to access the
remote server, this name will be resolved by the equipment and the connection will be made the same way.
Three levels of authentication may be selected: without authentication, simple authentication, and NAP.
No Authentication
After the connection, no package is transmitted by the FieldLogger except the user application data.