View source for Blocks MODBUS TCP

===== MODBUS_TCP_R_COIL =====
Reads one coil register
{| class="wikitable"
| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
|-
|in
|IP
|string
|
|IP address of slave device (syntax: "aaa.bbb.ccc.ddd")
|-
|in
|Port
|int
|
|TCP port of slave device (default: 502)
|-
|in
|UnitID
|byte
|
|Device bus address (default: 1)
|-
|in
|OfsAdr
|word
|
|register address (1-9999)
|-
|in
|Timeout
|byte
|
|timeout in seconds
|-
|out
|Q
|bool
|
|readed value
|}

===== MODBUS_TCP_R_DISCRETE =====
Read one discrete discrete input register
{| class="wikitable"
| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
|-
|in
|IP
|string
|
|IP address of slave device (syntax: "aaa.bbb.ccc.ddd")
|-
|in
|Port
|int
|
|TCP port of slave device (default: 502)
|-
|in
|UnitID
|byte
|
|Device bus address (default: 1)
|-
|in
|OfsAdr
|word
|
|register address (1-9999)
|-
|in
|Timeout
|byte
|
|timeout in seconds
|-
|out
|Q
|bool
|
|readed value
|}

===== MODBUS_TCP_R_HOLDING =====
Reads one holding register
{| class="wikitable"
| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
|-
|in
|IP
|string
|
|IP address of slave device (syntax: "aaa.bbb.ccc.ddd")
|-
|in
|Port
|int
|
|TCP port of slave device (default: 502)
|-
|in
|UnitID
|byte
|
|Device bus address (default: 1)
|-
|in
|OfsAdr
|word
|
|register address (1-9999)
|-
|in
|Timeout
|byte
|
|timeout in seconds
|-
|out
|Q
|word
|
|readed value
|}

===== MODBUS_TCP_R_INPUT =====
Reads one input register
{| class="wikitable"
| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
|-
|in
|IP
|string
|
|IP address of slave device (syntax: "aaa.bbb.ccc.ddd")
|-
|in
|Port
|int
|
|TCP port of slave device (default: 502)
|-
|in
|UnitID
|byte
|
|Device bus address (default: 1)
|-
|in
|OfsAdr
|word
|
|register address (1-9999)
|-
|in
|Timeout
|byte
|
|timeout in seconds
|-
|out
|Q
|word
|
|readed value
|}

===== MODBUS_TCP_W_COIL =====
Writes value to one coil register
{| class="wikitable"
| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
|-
|in
|IP
|string
|
|IP address of slave device (syntax: "aaa.bbb.ccc.ddd")
|-
|in
|Port
|int
|
|TCP port of slave device (default: 502)
|-
|in
|UnitID
|byte
|
|Device bus address (default: 1)
|-
|in
|OfsAdr
|word
|
|register address (1-9999)
|-
|in
|Timeout
|byte
|
|timeout in seconds
|-
|in
|VAL
|bool
|
|value to write
|}

===== MODBUS_TCP_W_HOLDING =====
Writes value to one holding register
{| class="wikitable"
| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
|-
|in
|IP
|string
|
|IP address of slave device (syntax: "aaa.bbb.ccc.ddd")
|-
|in
|Port
|int
|
|TCP port of slave device (default: 502)
|-
|in
|UnitID
|byte
|
|Device bus address (default: 1)
|-
|in
|OfsAdr
|word
|
|register address (1-9999)
|-
|in
|Timeout
|byte
|
|timeout in seconds
|-
|in
|VAL
|word
|
|value to write
|}