Ublox SARA-R4 Series User Manual (English)

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SARA-R4/N4 series-AT Commands Manual

UBX-17003787 - R09

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18Internet protocol transport layer

Page 201 of 307

18.23.3Defined values

Parameter Type Description

<socket> Number Socket identifier. The range goes from 0 to 6

<param_id> Number Control request identifier. Possible values are:

• 0: query for socket type

• 1: query for last socket error

• 2: get the total amount of bytes sent from the socket

• 3: get the total amount of bytes received by the socket

• 4: query for remote peer IP address and port

• 10: query for TCP socket status (only TCP sockets)

• 11: query for TCP outgoing unacknowledged data (only TCP sockets)

• 5-9, 12-99: RFU

<param_val> Number /

String

This value may assume different means depending on the <param_id> parameter.

If <param_id>= 0, <param_val> can assume these values:

• 6 TCP socket

• 17: UDP socket

If <param_id>= 1, <param_val> can assume these values:

• N: last socket error

If <param_id>= 2, <param_val> can assume these values:

• N: the total amount (in bytes) of sent (acknowledged + unacknowledged) data

If <param_id>= 3, <param_val> can assume these values:

• N: the total amount (in bytes) of received (read) data

If <param_id>= 4, <param_val> can assume these values:

• A string representing the remote peer IP address expressed in dotted decimal form

If <param_id>= 10, <param_val> can assume these values:

• 0: the socket is in INACTIVE status (it corresponds to CLOSED status defined in

RFC793 "TCP Protocol Specification" [112])

• 1: the socket is in LISTEN status

• 2: the socket is in SYN_SENT status

• 3: the socket is in SYN_RCVD status

• 4: the socket is in ESTABILISHED status

• 5: the socket is in FIN_WAIT_1 status

• 6: the socket is in FIN_WAIT_2 status

• 7: the sokcet is in CLOSE_WAIT status

• 8: the socket is in CLOSING status

• 9: the socket is in LAST_ACK status

• 10: the socket is in TIME_WAIT status

If <param_id>= 11, <param_val> can assume these values:

• N: the total amount of outgoing unacknowledged data

<param_val2> Number This value is present only when <param_id> is 4. It represents the remote peer IP port.

For IP address format reference see the IP addressing.

18.23.4Notes

SARA-R4 / SARA-N4

• <param_id>= 2, 3, 4 and 11 are not supported.

Other manuals for Ublox SARA-R4 Series

System Integration Manual157 pages

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Ublox SARA-R4 Series Specifications

General

Operating Temperature	-40°C to +85°C
Category	Cellular Module
Technology	LTE Cat M1, LTE Cat NB1
Frequency Bands	B1, B2, B3, B4, B5, B8, B12, B13, B18, B19, B20, B25, B26, B28, B39
Interfaces	UART, USB, I2C, GPIO
Protocols	TCP/IP, UDP, HTTP, HTTPS, MQTT, LWM2M
Security	TLS/SSL, DTLS, Secure Boot
Certifications	GCF, PTCRB, CE, FCC, IC