I.L. 66A7508H05
Page 9
Effective September 2003
7.0 Troubleshooting
The most common issues experienced with the installation of
an mMINT module are addressed below.
If you have any questions or need further information or
instructions, please contact your local representative or the
Customer Support Center at 1-828-651-0631.
•
Status LED not flashing
1. Verify proper input power to module connector.
•
Modbus Tx LED is flashing
, but the module does not
respond to master command requests
1. Verify communication cable is connected correctly
from the master to the module (A, B, +, -).
2. Verify the data transfer rate is correctly set using baud
rate switch (SW2).
•
INCOM Tx LED is flashing
, but the module does not
respond to master command requests
1. Verify communication cable is connected correctly
from the slave to the module.
2. Verify the product is setup for 9600 baud.
3. Verify that the termination switch (SW1) is set to ‘ON’
at the last module.
•
Removing an INCOM product and assigning its INCOM
(Modbus) address to another (different) INCOM
product.,
and exception codes are received from the
INCOM product
1. Disconnect the reassigned product from the INCOM
network.
2. Verify that the Modbus Master has sent at least two
requests to the address of the product that was just
disconnected.
3. Connect the reassigned INCOM product.
APPENDIX A
Notes:
1. Modbus
®
is a registered trademark of Schneider
Electric.
2. mMINT modules use DIN rail mounting.
3. Control voltage is 120 VAC +/-20% or 48-125 VDC.
4. Connectors are plug-in types from Phoenix Contact.
5. Terminal Types (
supplied with module)
are 3 point, 4
point, and 5 point Phoenix Contact.
•
MVSTBR2,5/3-STF-5,08
(Order No. 1835106)
•
MVSTBR2,5/4-STF-5,08
(Order No. 1835119)
•
MVSTBR2,5/5-STF-5,08
(Order No. 1835122)
6. INCOM communications cable is C-H style
2A957805G01 or Belden style 9463.
7. Setup switch SW1 to insert 100 ohm terminating
resistor on last module in the INCOM network.
8. Setup switch SW2 to select data transfer rate on the
Modbus network.
9. Setup switch SW3 to insert 121 ohm terminating
resistor on last module in the Modbus network.
10. Power wiring is any approved 300 volt, 10 Amp, 30-12
AWG
(stranded or solid)
.
11. The register map for INCOM products is shown in
register number order in
Table
7
and functional order
in
Table 8
. Numeric entries indicated with an asterisk
(*) have specific definitions dependent upon the
particular INCOM product. These tables include only
a partial list of applicable INCOM products; however,
it contains a complete list of the INCOM objects
directly supported by the mMINT. Due to the mMINT
pass through feature
all
INCOM product objects are
accessible by a Modbus Master.
12. The primary and secondary codes are mapped to the
high and low bytes, respectively, of registers 404609
(1200
16
) and 406145 (1800
16
). The primary status
codes are shown in
Table 9
. The secondary status
codes are shown in
Table 10
. The cause-of-status
codes are mapped to registers 404610 (1201
16
) and
406146 (1801
16
). The cause-of-status codes are
shown in
Table 11
.
13. Catalog Number is
MMINT
.
