Blocks MODBUS TCP - Revision history

Z033 at 03:55, 16 July 2025

2025-07-16T03:55:39Z

Z033 at 11:52, 12 November 2018

2018-11-12T11:52:35Z

Z033: Created page with "===== MODBUS_TCP_R_COIL ===== Reads one coil register {| class="wikitable" | colspan="5" |Asynchronous interface |- |in |IP |string | |IP address..."

2018-11-12T11:50:47Z

Created page with "===== MODBUS_TCP_R_COIL ===== Reads one coil register {| class="wikitable" | colspan="5" |Asynchronous interface |- |in |IP |string | |IP address..."

New page

===== 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
|}

@@ Line 1: / Line 1: @@
 ===== MODBUS_TCP_R_COIL =====
 Reads one coil register
 {| class="wikitable"
-| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
+| colspan="5" |[[Libraries for IEC 61131-3|Asynchronous interface]]
 |-
 |in
@@ Line 44: / Line 46: @@
 Read one discrete discrete input register
 {| class="wikitable"
-| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
+| colspan="5" |[[Libraries for IEC 61131-3|Asynchronous interface]]
 |-
 |in
@@ Line 86: / Line 88: @@
 Reads one holding register
 {| class="wikitable"
-| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
+| colspan="5" |[[Libraries for IEC 61131-3|Asynchronous interface]]
 |-
 |in
@@ Line 128: / Line 130: @@
 Reads one input register
 {| class="wikitable"
-| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
+| colspan="5" |[[Libraries for IEC 61131-3|Asynchronous interface]]
 |-
 |in
@@ Line 170: / Line 172: @@
 Writes value to one coil register
 {| class="wikitable"
-| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
+| colspan="5" |[[Libraries for IEC 61131-3|Asynchronous interface]]
 |-
 |in
@@ Line 212: / Line 214: @@
 Writes value to one holding register
 {| class="wikitable"
-| colspan="5" |[[#Asynchronous operations|Asynchronous interface]]
+| colspan="5" |[[Libraries for IEC 61131-3|Asynchronous interface]]
 |-
 |in