VTS Medical Systems HMI-WING EC Use and care manual

Device Integration Manual on
Modbus RTU Bus
Ver. 1.3

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Picture 1: device outputs View
1. Outputs
Terminal block
J3
Terminal block
J2
Terminal block
J1
-
Analogue output
L - 230 VAC
B - RS 485Line
Analogue output
mass
N - 230 VAC
A - RS 485 Line
Door sensor
Heating level 1
Heating level 2
RS 485 mass
Door sensor
Heating level 2
Table 1. Device outputs table.
version 1.3
1. Outputs
Picture 1: device outputs View

2. Device-operated functions
Function code
Description
Dec
Hex
1
0x01
Binary output status read
2
0x02
Binary input status read
3
0x03
Memory register read
4
0x04
Input register read
5
0x05
Record of one binary output
6
0x06
Record of one memory register
15
0x0F
Record of many binary outputs
16
0x10
Record of many memory registers
Table 2: Device-operated functions.
Binary output status read (code 1) - The function allows, with one message, to read many
subsequent binary output reads. The attempt to read the non-existing binary output leads to error message.
Example: output 7-18 read
Request
Response
Field name
Hex
Field name
Hex
Function Code
0x01
Function Code
0x01
Register address –high part
0x00
Bytes
0x02
Register address –low part
0x06
14-7 outputs status
0xAC
Number of binary outputs –high part
0x00
18-15 output status
0x0B
Number of binary outputs –low part
0x0C
Table 3: Exemplary binary output read.
Output No.
14
13
12
11
10
9
8
7
-
-
-
-
18
17
16
15
Value Read
Hex
0xAC
0x0B
Bit
1
0
1
0
1
1
0
0
0
0
0
0
1
0
1
1
Input Status
ON
OFF
ON
OFF
ON
ON
OFF
OFF
-
-
-
-
ON
OFF
ON
ON
Table 4: Interpretation of binary output statuses
3

Binary output status read (code 2) - Function allows, with one message, to read many subsequent
addressed binary output statuses. The attempt to read an non-existing binary input leads to error message
Example: 1-5 output read
Request
Response
Field name
Hex
Field name
Hex
Function code
0x02
Function code
0x02
Register address –high part
0x00
Bytes
0x01
Register address –low part
0x00
5-1 input status
0x19
Number of binary inputs –high part
0x00
Number of binary inputs –low part
0x05
Table 5: Exemplary binary input read
Input No.,
-
-
-
5
4
3
2
1
Value read
Hex
0x19
Bit
0
0
0
1
1
0
0
1
Input status
-
-
-
ON
ON
OFF
OFF
ON
Table 6: Interpretation of binary input statuses
Memory Register read (code 3) –the Function allows, with one message, to read subsequently
addressed registers . An attempt to read a non-existing register leads to an error message.
Example: 108-110 register read
Request
Response
Field name
Hex
Field name
Hex
Function Code
0x03
Function Code
0x03
Register address –high part
0x00
Bytes
0x06
Register address –low part
0x6B
Register value –high part (108)
0x02
Number of registers –high part
0x00
Register value –low part (108)
0x2B
Number of registers –low part
0x03
Register value –high part (109)
0x00
Register value –low part (109)
0x00
Register value –high part (110)
0x00
Register value –low part (110)
0x64
Table 7: Exemplary memory register read.
4

Input Register Read (code 4) –the Function allows, with one message, to read subsequently
addressed registers . An attempt to read a non-existing register leads to an error message.
Example: Register 9 read
Request
Response
Field name
Hex
Field name
Hex
Function code
0x04
Function code
0x04
Register address –high part
0x00
Bytes
0x02
Register address –low part
0x08
Register value –high part (9)
0x00
Number of registers –high part
0x00
Register value –low part (9)
0x0A
Number of registers –younger part
0x01
Table 8: Exemplary input register read
Record of one binary output (code 5) –Function allows to record one binary output. Allowable
values 0xFF00 (ON), 0x0000 (OFF).. Attempt to record a non-existing binary output leads to an error
message.
Example: output 2 record (ON)
Request
Response
Field name
Hex
Field name
Hex
Function code
0x05
Function code
0x05
Register address - high part
0x00
Register address - high part
0x00
Register address - low part
0x01
Register address - low part
0x01
Register value - high part
0xFF
Register value - high part
0xFF
Register value - low part
0x00
Register value - low part
0x00
Table 9: Exemplary record of one binary output
Record of one memory register (code 6) - Function allows to record one register. Attempt to record a
non-existing register leads to an error message
Example: Register 2 record
Request
Response
Field name
Hex
Field name
Hex
Function code
0x06
Function code
0x06
Register address - high part
0x00
Register address - high part
0x00
Register address - low part
0x01
Register address - low part
0x01
5

Register value - high part
0x00
Register value - high part
0x00
Register value - low part
0x03
Register value - low part
0x03
Table 10: Exemplery record of one memory register
Record of many binary outputs (code 15) - Function that allows, with one message, to record many
subsequently addressed binary outputs. An attempt to record a non-existing binary output leads to an error
message
Example: 20 –29 outputs record
Request
Response
Field name
Hex
Field name
Hex
Function code
0x0F
Function code
0x0F
Register address - high part
0x00
Register address - high part
0x00
Register address - low part
0x13
Register address - low part
0x13
Number of binary outputs - high part
0x00
Number of binary outputs - high part
0x00
Number of binary outputs - low part
0x0A
Number of binary outputs - low part
0x0A
Bytes
0x02
27 –20 output status
0xCD
29 –28 output status
0x01
Table 11: Exemplary record of many binary registers
Input No,
27
26
25
24
23
22
21
20
-
-
-
-
-
-
29
28
Value read
Hex
0xCD
0x01
Bit
1
1
0
0
1
1
0
1
0
0
0
0
0
0
0
1
Input status
ON
ON
OFF
OFF
ON
ON
OFF
ON
-
-
-
-
-
-
OFF
ON
Table 12: Interpretation of binary output statuses
Record of many memory registers (code 16) - The function allows, with one message, to read many
subsequently addressed binary output reads. The attempt to read the non-existing binary output leads to error
message.
Example: Register 256-257 read
Request
Response
Field name
Hex
Field name
Hex
Function code
0x10
Function code
0x10
Register address - high part
0x00
Register address - high part
0x00
6

Register address - low part
0xFF
Register address - low part
0xFF
Number of registers –high part
0x00
Number of registers –high part
0x00
Number of registers –low part
0x02
Number of registers –low part
0x02
Bytes
0x04
Register value - high part (256)
0x00
Register value - low part (256)
0x0A
Register value - high part (257)
0x00
Register value - low part (257)
0x03
Table 13: Exemplary record of many memory registers
7

3. Data blocks used by the device
2.1. Memory registers
Variable
Address
Default
value
For PDU
Dec
Hex
MB_ADDR_BAUDRATE *
0
0x0000
960
MB_ADDR_PARITY_MODE *
1
0x0001
'e'
MB_ADDR_SLAVE_ADDR *
2
0x0002
1
MB_ADDR_NTC_1_CORRECT *
3
0x0003
0
MB_ADDR_NTC_PERIOD
4
0x0004
10
MB_ADDR_RTC_WEEK_DAY
5
0x0005
-
MB_ADDR_RTC_YEAR
6
0x0006
-
MB_ADDR_RTC_MONTH
7
0x0007
-
MB_ADDR_RTC_DAY
8
0x0008
-
MB_ADDR_RTC_HOUR
9
0x0009
-
MB_ADDR_RTC_MINUTE
10
0x000A
-
MB_ADDR_RTC_SECOND
11
0x000B
-
MB_ADDR_FAN_ACTUAL_POWER_VOLT
12
0x000C
-
MB_ADDR_FAN_POWER_1_VOLT
13
0x000D
650
MB_ADDR_FAN_POWER_2_VOLT
14
0x000E
800
MB_ADDR_FAN_POWER_3_VOLT
15
0x000F
900
MB_ADDR_FAN_ADDITIONAL_VOLT
16
0x0010
0
MB_ADDR_FAN_DELAY_OFF_TIME
17
0x0011
40
MB_ADDR_ZONE_AVAILABLE_MODE
18
0x0012
3
MB_ADDR_ZONE_PROGRAM
19
0x0013
0
MB_ADDR_ZONE_MODE_CONDITION
20
0x0014
0
MB_ADDR_ZONE_MODE
21
0x0015
0
MB_ADDR_ZONE_FAN_SPEED
22
0x0016
1
MB_ADDR_ZONE_TEMPERATURE_TARGET
23
0x0017
2200
MB_ADDR_ZONE_TEMPERATURE_DELTA
24
0x0018
50
MB_ADDR_ZONE_TEMPERATURE_MIN
25
0x0019
500
MB_ADDR_ZONE_TEMPERATURE_MAX
26
0x001A
4000
MB_ADDR_ZONE_SCHEDULE_MON_FRI_WORK_1_START
27
0x001B
480
8

MB_ADDR_ZONE_SCHEDULE_MON_FRI_WORK_1_STOP
28
0x001C
780
MB_ADDR_ZONE_SCHEDULE_MON_FRI_WORK_2_START
29
0x001D
840
MB_ADDR_ZONE_SCHEDULE_MON_FRI_WORK_2_STOP
30
0x001E
1080
MB_ADDR_ZONE_SCHEDULE_SAT_WORK_1_START
31
0x001F
480
MB_ADDR_ZONE_SCHEDULE_SAT_WORK_1_STOP
32
0x0020
780
MB_ADDR_ZONE_SCHEDULE_SAT_WORK_2_START
33
0x0021
840
MB_ADDR_ZONE_SCHEDULE_SAT_WORK_2_STOP
34
0x0022
1080
MB_ADDR_ZONE_SCHEDULE_SUN_WORK_1_START
35
0x0023
480
MB_ADDR_ZONE_SCHEDULE_SUN_WORK_1_STOP
36
0x0024
780
MB_ADDR_ZONE_SCHEDULE_SUN_WORK_2_START
37
0x0025
840
MB_ADDR_ZONE_SCHEDULE_SUN_WORK_2_STOP
38
0x0026
1080
*registers of single record (one message must include a record of only one register)
Table 14: Memory register type data block organization.
Caution !!! Recording registers with addresses from 0 to 3 must contain a record of only one
variable. For example, to set the rate of MODBUS transmission, the parity mode and device address must
send three separate messages. The attempt to record two or three registers at the same time leads to an error
message.
MB_ADDR_BAUDRATE ^ variable determining a transmission rate with which the device operates
on MODBUS bus. Allowable values for variable are 480, 960, 1920, 3840 (4800[bps],
9600[bps], 19200[bps], 38400[bps]). Attempt to record other value leads to an error message. Upon sending
correct value, other than the current one, a record will take place of new transmission rate in backed up
EEPROM memory, and triggering of device reset procedure.
Transmission rate = MB_ADDR_BAUDRATE * 10[bps].
MB_ADDR_PARITY_MODE - Parity mode for MODBUS transmission. Allowable values for
variable and a number of alloy bits (according to MODBUS specification):
Parity mode
Variable value
Number of alloy
bits
Mark
Hex
even parity
'e'
0x65
1
odd parity
'o'
0x6F
1
no parity
'n'
0x6E
2
Table 15: Parity mode
An attempt to record values beyond the table leads to an error message. Upon sending a proper value, other
than current one, new parity mode will be recorded in in backed up
9

EEPROM memory, and the device reset procedurę will be triggered
MB_ADDR_SLAVE_ADDR - address of the device on MODBUS bus. Allowed values for variable
within a range from 1 to 247. Attempt to record other number will lead to an error message. Upon sending a
correct value, other than the current one, new address will be recorded in the backed-up EEPROM memory,
and the device reset procedure will be triggered
MB_ADDR_NTC_1_CORRECT - Register allowing setting the correction value for temperatures
read from the in-built NTC10K sensor. Allowable values fro variable within a range from -800 to 800 (-8
[°C] do 8 [°C]). Attempt to record a number beyond the allowable values will lead to an error message.
Variable stored in the backed-up EEPROM memory
TCorr = (MB_ADDR_NTC_1_CORRECT / 100)[°C].
MB_ADDR_NTC_PERIOD - Variable determining a time period between subsequent temperature
measurements. Allowable values for a variable within a range from 0 to 65535, whereas zero means
switching off the temperature read. Variable stored in a backed-up EEPROM memory. Measurement period
is determined on the basis of the formula:
Tpom = (MB_ADDR_NTC_PERIOD * 0.1) [s].
MB_ADDR_RTC_WEEK_DAY - variable that determine a currently set day of the week. Particular
days correspond to following numbers:
Register value
Day of the week
0
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
Table 16: days of the week.
Caution !!! Day of a week is set automatically by the device on the basis of current date (see
MB_ADDR_RTC_YEAR,MB_ADDR_RTC_MONTH,MB_ADDR_RTC_DAY). Attempt to enter invalid
day in relation to current date leads to an error message.
10